{"id":15724,"date":"2026-06-16T11:40:26","date_gmt":"2026-06-16T03:40:26","guid":{"rendered":"https:\/\/www.drillpipes.com\/api-5dp-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%ba%d0%bb%d0%b0%d1%81%d1%81-selection-e75-x95-g105-and-s135-co%d0%bc%d0%bf%d0%b0red\/"},"modified":"2026-09-18T16:02:16","modified_gmt":"2026-09-18T08:02:16","slug":"api-5dp-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%ba%d0%bb%d0%b0%d1%81%d1%81-selection-e75-x95-g105-and-s135-co%d0%bc%d0%bf%d0%b0red","status":"publish","type":"post","link":"https:\/\/www.drillpipes.com\/ru\/api-5dp-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%ba%d0%bb%d0%b0%d1%81%d1%81-selection-e75-x95-g105-and-s135-co%d0%bc%d0%bf%d0%b0red\/","title":{"rendered":"API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Selection: E75, X95, G105 and S135 Co\u041c\u041f\u0430red"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>API 5DP Drill Pipe Grade Selection<\/strong> compares <strong>E75, X95, G105 and S135<\/strong> by strength level, load condition and drill string performance. E75 starts at <strong>75 ksi minimum yield strength<\/strong>, X95 at <strong>95 ksi<\/strong>, G105 at <strong>105 ksi<\/strong> and S135 at <strong>135 ksi<\/strong>, but grade selection should not move upward only because the number is higher. E75 is normally reviewed for moderate tensile and torque demand, X95 for added load margin, G105 for deeper or directional drilling, and S135 for high hook load, long horizontal sections or higher torque conditions. The correct grade should match the full load path, including dogleg severity, fatigue exposure, OD \/ wall thickness, upset type, tool joint condition, connection capacity and traceable inspection records.<\/p>\n\n<h2 class=\"wp-block-heading\">API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s and Mechanical Properties<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-api-5dp\/\">API 5DP Drill Pipe<\/a> Grades<\/strong> should be read as the mechanical acceptance baseline for the pipe body, not as a complete drill string selection result. The strength window of each grade needs to be checked together with pipe size, wall thickness, upset geometry, weld zone, tool joint configuration, connection type, hardness \/ impact requirements where applicable, and traceable inspection records. This approach keeps the grade comparison tied to real drill pipe performance rather than only to yield-strength numbers.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">API 5DP \u043a\u043b\u0430\u0441\u0441<\/th><th class=\"has-text-align-center\" data-align=\"center\">Minimum \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438<\/th><th class=\"has-text-align-center\" data-align=\"center\">Maximum \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438<\/th><th class=\"has-text-align-center\" data-align=\"center\">Minimum \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043d\u0430 \u0440\u0430\u0437\u0440\u044b\u0432<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">E75<\/td><td class=\"has-text-align-center\" data-align=\"center\">75 ksi \/ 517 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">105 ksi \/ 724 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">100 ksi \/ 689 \u041c\u041f\u0430<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">X95<\/td><td class=\"has-text-align-center\" data-align=\"center\">95 ksi \/ 655 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">125 ksi \/ 862 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">105 ksi \/ 724 \u041c\u041f\u0430<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">G105<\/td><td class=\"has-text-align-center\" data-align=\"center\">105 ksi \/ 724 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">135 ksi \/ 931 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">115 ksi \/ 793 \u041c\u041f\u0430<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">S135<\/td><td class=\"has-text-align-center\" data-align=\"center\">135 ksi \/ 931 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">165 ksi \/ 1138 \u041c\u041f\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">145 ksi \/ 1000 \u041c\u041f\u0430<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-Mechanical-Strength-Reference.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u0412\u0441\u0442\u0430\u0432\u043a\u0430 API 5DP Drill Pipe Grades Mechanical Strength Reference\"><\/object><a id=\"wp-block-file--media-b4cff3d9-204c-4bcb-98fd-845539da9ae2\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-Mechanical-Strength-Reference.pdf\">API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s Mechanical Strength Reference<\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-Mechanical-Strength-Reference.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-b4cff3d9-204c-4bcb-98fd-845539da9ae2\">Download<\/a><\/div>\n\n<p class=\"wp-block-paragraph\">From E75 to S135, the yield-strength window increases, but the \u043a\u043b\u0430\u0441\u0441 should still be reviewed against the complete \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 assembly. For G105 and S135, higher \u0442\u0440\u0443\u0431\u0430 body strength can shift the limiting point toward the upset transition, \u0440\u0435\u0437\u044c\u0431\u0430 area, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 shoulder or \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435-side \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c.<\/p>\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"13551\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/drill-pipe-mechanical-properties-1024x768.jpg\" alt=\"\" class=\"wp-image-13551\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/drill-pipe-mechanical-properties-1024x768.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/drill-pipe-mechanical-properties-300x225.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/drill-pipe-mechanical-properties.jpg 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n<h2 class=\"wp-block-heading\">E75 vs X95 vs G105 vs S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Selection Co\u041c\u041f\u0430rison<\/h2>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">API 5DP \u043a\u043b\u0430\u0441\u0441<\/th><th>Typical Review Condition<\/th><th>Main Control Point<\/th><th>Next Review Step<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>E75 Drill Pipe<\/strong><\/td><td>Conventional \u0432\u0435\u0440\u0442\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s, moderate tensile load and normal \u0440\u043e\u0442\u043e\u0440 \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442<\/td><td>\u043a\u0440\u044e\u043a load, OD \/ \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 match and basic inspection records<\/td><td>Review X95 when tensile margin becomes limited or directional load increases<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>X95 Drill Pipe<\/strong><\/td><td>Medium-depth \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s, controlled directional sections and moderate \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 increase<\/td><td>Tensile margin, \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 demand, bending load and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 co\u041c\u041f\u0430tibility<\/td><td>Review G105 when X95 no longer provides enough load margin<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>G105 Drill Pipe<\/strong><\/td><td>Deeper \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s, \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0435 \u0431\u0443\u0440\u0435\u043d\u0438\u0435, controlled \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 sections and higher combined load<\/td><td>\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, dogleg severity, cyclic bending, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 strength and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 review<\/td><td>Review S135 when \u043a\u0440\u044e\u043a load, long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 rotation or bending \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c approaches the G105 margin<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>S135 Drill Pipe<\/strong><\/td><td>\u0433\u043b\u0443\u0431\u043e\u043a\u0430\u044f \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s, high \u043a\u0440\u044e\u043a load, long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 sections, ERD or high-\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 \u0431\u0443\u0440\u0435\u043d\u0438\u0435<\/td><td>\u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, shoulder contact, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 matching and hardness \/ toughness review<\/td><td>Review a special material route when sour service, low-temperature toughness or severe \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c controls the design<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-color\">E75, X95, G105 and S135<\/mark> each have a suitable review range, and the final grade should match the well profile, fatigue exposure, connection capacity and inspection evidence.<\/p>\n\n<h2 class=\"wp-block-heading\">E75 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430: Baseline \u043a\u043b\u0430\u0441\u0441 for Moderate \u0431\u0443\u0440\u0435\u043d\u0438\u0435 Load<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-e75\/\">E75 Drill Pipe<\/a><\/strong> provides the baseline API 5DP strength level, with <strong>75 ksi \/ 517 MPa minimum yield strength<\/strong>, <strong>105 ksi \/ 724 MPa maximum yield strength<\/strong> and <strong>100 ksi \/ 689 MPa minimum tensile strength<\/strong>. It is reviewed for drilling programs where tensile load, torque, bending cycle and connection demand remain within a moderate range. Its role is not to compete with G105 or S135 in high-load sections, but to provide a stable grade basis where the well profile, OD \/ wall thickness, upset type and connection have enough design margin.<\/p>\n\n<p class=\"wp-block-paragraph\">E75 is more suitable when:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>the \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 is \u0432\u0435\u0440\u0442\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 or only moderately directional<\/li>\n\n\n\n<li>\u043a\u0440\u044e\u043a load and \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 remain within a controlled range<\/li>\n\n\n\n<li>dogleg severity is not a major \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c driver<\/li>\n\n\n\n<li>no severe sour-service or low-temperature toughness requirement controls the design<\/li>\n\n\n\n<li>the selected size, \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438 and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 provide enough design margin<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">E75 becomes less suitable when the \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 moves toward higher tensile load, longer directional sections, higher \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 or repeated bending conditions. In that case, the \u043a\u043b\u0430\u0441\u0441 review usually moves toward X95, G105 or S135.<\/p>\n\n<h2 class=\"wp-block-heading\">X95 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430: Intermediate Strength Between E75 and G105<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong>X95 Drill Pipe<\/strong> provides an intermediate API 5DP strength level, with <strong>95 ksi \/ 655 MPa minimum yield strength<\/strong>, <strong>125 ksi \/ 862 MPa maximum yield strength<\/strong> and <strong>105 ksi \/ 724 MPa minimum tensile strength<\/strong>. It is selected when E75 does not provide enough tensile-load margin, but the well profile still does not require G105 or S135. The review should focus on medium-depth drilling, controlled directional sections, increased torque demand and limited fatigue exposure.<\/p>\n\n<p class=\"wp-block-paragraph\">X95 is commonly reviewed for:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>medium-depth \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s with higher tension than E75 can comfortably support<\/li>\n\n\n\n<li>controlled directional \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s<\/li>\n\n\n\n<li>\u0431\u0443\u0440\u0435\u043d\u0438\u0435 sections with increased \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 but limited severe \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure<\/li>\n\n\n\n<li>applications where G105 or S135 may be more strength than the load case requires<\/li>\n\n\n\n<li>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430s where \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 co\u041c\u041f\u0430tibility and inspection records still support \u0441\u0432\u0435\u0447\u0430ard API \u043a\u043b\u0430\u0441\u0441 review<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.drillpipes.com\/ru\/x95-vs-g105-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0\/\">The difference between X95 and G105 <\/a>is not only a 10 ksi minimum yield-strength increase. The review should also consider whether the extra strength is needed for the actual load path. If the limiting factor is connection torque, dogleg fatigue or tool joint condition, moving to a higher pipe body grade alone may not solve the problem.<\/p>\n\n<h2 class=\"wp-block-heading\">G105 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430: Higher Strength for Deeper or Directional \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-g105\/\">G105 Drill Pipe<\/a><\/strong> provides <strong>105 ksi \/ 724 MPa minimum yield strength<\/strong>, <strong>135 ksi \/ 931 MPa maximum yield strength<\/strong> and <strong>115 ksi \/ 793 MPa minimum tensile strength<\/strong>. It offers a higher strength window than X95, but remains below S135, making it suitable for medium-to-deep directional wells, controlled horizontal sections and drilling intervals where torque, tension and cyclic bending increase but a high-strength S135 route is not yet required.<\/p>\n\n<p class=\"wp-block-paragraph\">G105 \u043a\u043b\u0430\u0441\u0441 review should include:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>tensile-load margin under planned \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 depth<\/li>\n\n\n\n<li>\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 and \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 along the directional section<\/li>\n\n\n\n<li>\u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 size, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 type and shoulder contact<\/li>\n\n\n\n<li>\u0442\u0440\u0443\u0431\u0430 marking, MTC and heat number traceability<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">A <strong>G105 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> selection is usually reasonable when the main requirement is higher \u0442\u0440\u0443\u0431\u0430 body strength, while \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and service-environment risks remain controlled. If the \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 profile includes long lateral rotation, high \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, severe dogleg or sour-service exposure, G105 still needs a deeper performance review instead of being selected by \u043a\u043b\u0430\u0441\u0441 name alone.<\/p>\n\n<h2 class=\"wp-block-heading\">S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430: High-Strength API \u043a\u043b\u0430\u0441\u0441 for Higher Load Conditions<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-s135\/\">S135 Drill Pipe<\/a><\/strong> provides the common high-strength API baseline in this grade group. With a 135 ksi minimum yield-strength level, it is normally reviewed for deep wells, high hook load, long horizontal sections and drilling programs where the drill string needs a larger tensile-strength margin.<\/p>\n\n<p class=\"wp-block-paragraph\">S135 is important because it expands the available strength window beyond E75, X95 and G105. But it should not be treated as the automatic best answer. Higher strength also makes toughness, hardness, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c-sensitive geometry and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435-side performance more important.<\/p>\n\n<p class=\"wp-block-paragraph\">S135 should be reviewed carefully when:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u043a\u0440\u044e\u043a load approaches the practical margin of G105<\/li>\n\n\n\n<li>long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 or ERD sections increase \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 and \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435<\/li>\n\n\n\n<li>high dogleg severity creates repeated bending stress<\/li>\n\n\n\n<li>high make-up \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 requires stronger \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 review<\/li>\n\n\n\n<li>\u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 matching becomes critical to \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 performance<\/li>\n\n\n\n<li>hardness, toughness or cracking risk may control the service condition<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">For sour-service or H2S-containing environments, S135 should not be selected only because it has high strength. Sour-service use requires separate qualification logic, hardness control, cracking-risk review and project-specific acceptance requirements. A high-strength \u043a\u043b\u0430\u0441\u0441 without the \u0431\u0443\u0440\u043e\u0432\u0430\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430ht service basis can create risk rather than solve it.<\/p>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-0e47273b wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"13553\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-1-1024x768.jpg\" alt=\"\" class=\"wp-image-13553\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-1-1024x768.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-1-300x225.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grades-1.jpg 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-Drill-Pipe-1-1024x768.jpg\" alt=\"\" class=\"wp-image-13554\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-Drill-Pipe-1-1024x768.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-Drill-Pipe-1-300x225.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-Drill-Pipe-1.jpg 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">G105 vs S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430: Strength Difference and Selection Logic<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.drillpipes.com\/ru\/g105-vs-s135-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0\/\">G105 vs S135 Drill Pipe<\/a><\/strong> is one of the most important comparisons in API 5DP grade selection. S135 has a higher minimum yield strength than G105, but this does not mean S135 is always the better choice.<\/p>\n\n<p class=\"wp-block-paragraph\">The correct \u043a\u043b\u0430\u0441\u0441 is determined by the limiting load path. G105 is usually enough when \u043a\u0440\u044e\u043a load, \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, dogleg severity and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 capacity remain within the reviewed margin. S135 becomes more relevant when long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 rotation, high \u043a\u0440\u044e\u043a load or severe bending increases \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure near the upset transition, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 or \u0440\u0435\u0437\u044c\u0431\u0430 shoulder. If the limiting point is \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, shoulder contact, i\u041c\u041f\u0430ct toughness or service condition, increasing \u0442\u0440\u0443\u0431\u0430 body \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438 alone does not improve the actual \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 selection.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Review Item<\/th><th>G105 Selection Basis<\/th><th>S135 Selection Basis<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Tensile load<\/td><td>G105 provides enough design margin for the planned \u043a\u0440\u044e\u043a load and \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 \u0432\u0435\u0441.<\/td><td>\u043a\u0440\u044e\u043a load approaches or exceeds the practical margin of G105.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 profile<\/td><td>Directional sections are controlled, and dogleg severity remains moderate.<\/td><td>Long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439, ERD or severe dogleg sections increase bending and \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 demand<\/td><td>\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 capacity remain within the reviewed \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 range.<\/td><td>High \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, shoulder loading or repeated make-up makes \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 review critical.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c risk<\/td><td>Rotation and bending cycles remain within normal \u043a\u043b\u0430\u0441\u0441 review.<\/td><td>Repeated bending near the upset transition or \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 area becomes a key control point.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Service condition<\/td><td>No severe sour-service, low-temperature or special toughness requirement controls the \u043a\u043b\u0430\u0441\u0441.<\/td><td>Hardness, toughness, cracking resistance or service qualification requires stricter review.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Inspection evidence<\/td><td>\u0441\u0432\u0435\u0447\u0430ard API \u043a\u043b\u0430\u0441\u0441 records support the selected size, \u043a\u043b\u0430\u0441\u0441 and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435.<\/td><td>Additional review of toughness, hardness, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 matching and traceability records is required.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">G105 is often a higher-strength working \u043a\u043b\u0430\u0441\u0441 for deeper or \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0435 \u0431\u0443\u0440\u0435\u043d\u0438\u0435, while S135 is reviewed when the load case needs a high-strength API \u043a\u043b\u0430\u0441\u0441. Neither \u043a\u043b\u0430\u0441\u0441 should be selected without checking the \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure and inspection evidence.<\/p>\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/G105-vs-S135-Drill-Pipe-Selection-Review.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u0412\u0441\u0442\u0430\u0432\u043a\u0430 G105 vs S135 Drill Pipe Selection Review\"><\/object><a id=\"wp-block-file--media-d28ebd91-2eee-485c-92c7-7c36a3e4a213\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/G105-vs-S135-Drill-Pipe-Selection-Review.pdf\">G105 vs S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 Selection Review<\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/G105-vs-S135-Drill-Pipe-Selection-Review.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-d28ebd91-2eee-485c-92c7-7c36a3e4a213\">Download<\/a><\/div>\n\n<h2 class=\"wp-block-heading\">\u043a\u043b\u0430\u0441\u0441 Selection by \u0431\u0443\u0440\u0435\u043d\u0438\u0435 Condition<\/h2>\n\n<p class=\"wp-block-paragraph\">Before selecting E75, X95, G105 or S135, the review should separate load demand from failure risk. \u0432\u0435\u0440\u0442\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s are mainly controlled by tensile load and normal \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, while long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 or ERD \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s are controlled by \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, cyclic bending and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435-side \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c. Sour-service or low-temperature \u0431\u0443\u0440\u0435\u043d\u0438\u0435 requires hardness, i\u041c\u041f\u0430ct toughness and cracking-resistance review beyond \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">\u0431\u0443\u0440\u0435\u043d\u0438\u0435 Condition<\/th><th class=\"has-text-align-center\" data-align=\"center\">Common \u043a\u043b\u0430\u0441\u0441 Review<\/th><th>Key Control Point<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Conventional \u0432\u0435\u0440\u0442\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">E75 \/ X95<\/td><td>Tensile load, normal \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, basic inspection records<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Medium-depth directional \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">X95 \/ G105<\/td><td>\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, bending load, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 co\u041c\u041f\u0430tibility<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0433\u043b\u0443\u0431\u043e\u043a\u0430\u044f \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">G105 \/ S135<\/td><td>\u043a\u0440\u044e\u043a load, tensile margin, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 strength<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">G105 \/ S135<\/td><td>\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c, dogleg severity<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ERD \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430<\/td><td class=\"has-text-align-center\" data-align=\"center\">S135 or special route review<\/td><td>Combined tension, \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 and \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">High-\u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 \u0431\u0443\u0440\u0435\u043d\u0438\u0435<\/td><td class=\"has-text-align-center\" data-align=\"center\">G105 \/ S135<\/td><td>Make-up \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, shoulder contact, \u0440\u0435\u0437\u044c\u0431\u0430 condition<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Sour-service or H2S exposure<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sour-service route review<\/td><td>Hardness, SSC risk and service qualification basis<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Low-temperature \u0431\u0443\u0440\u0435\u043d\u0438\u0435<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u043a\u043b\u0430\u0441\u0441 plus toughness review<\/td><td>Charpy test temperature and absorbed energy requirement<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"13552\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-vs-X95-vs-G105-vs-S135-1024x768.jpg\" alt=\"\" class=\"wp-image-13552\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-vs-X95-vs-G105-vs-S135-1024x768.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-vs-X95-vs-G105-vs-S135-300x225.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/E75-vs-X95-vs-G105-vs-S135.jpg 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grade-Selection-Matrix-by-Drilling-Condition.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u0412\u0441\u0442\u0430\u0432\u043a\u0430 API 5DP Drill Pipe Grade Selection Matrix by Drilling Condition\"><\/object><a id=\"wp-block-file--media-9fb9465d-d03e-4c90-b2d7-109f3b70d3c2\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grade-Selection-Matrix-by-Drilling-Condition.pdf\">API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Selection Matrix by \u0431\u0443\u0440\u0435\u043d\u0438\u0435 Condition<\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/06\/API-5DP-Drill-Pipe-Grade-Selection-Matrix-by-Drilling-Condition.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-9fb9465d-d03e-4c90-b2d7-109f3b70d3c2\">Download<\/a><\/div>\n\n<p class=\"wp-block-paragraph\">G105 is generally reviewed for deep or directional sections with controlled \u043a\u0440\u044e\u043a load, \u0440\u043e\u0442\u043e\u0440 \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 and dogleg-related bending. S135 is more suitable when long lateral rotation, ERD \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, high \u043a\u0440\u044e\u043a load or repeated bending near the upset transition and \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 creates higher \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435-side demand.The \u043a\u043b\u0430\u0441\u0441 ranges in this table should be treated as engineering review boundaries rather than fixed selection rules. G105 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 can be enough for a <a href=\"__PROTECTED_0__\">deep or directional \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430<\/a> when tensile margin, dogleg severity and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 capacity remain controlled. S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 becomes more relevant when high \u043a\u0440\u044e\u043a load, long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 rotation, ERD \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 or severe bending makes G105 margin insufficient.<\/p>\n\n<h2 class=\"wp-block-heading\">\u043a\u043b\u0430\u0441\u0441 Selection Must Match Size, Upset Type and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/h2>\n\n<p class=\"wp-block-paragraph\"><strong>API 5DP grade selection should be checked together with the physical drill pipe design, not only the steel strength level.<\/strong> Even when the pipe body meets G105 or S135 strength, the final drill string performance can still be limited by wall thickness, internal clearance after upset, tool joint bore, connection torque capacity, shoulder contact or fatigue concentration near the upset transition.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Review Area<\/th><th>Why It Matters<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">OD \/ \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438 \/ nominal \u0432\u0435\u0441<\/td><td>Affects tensile capacity, internal clearance, handling \u0432\u0435\u0441 and \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 design.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/www.drillpipes.com\/ru\/ieu-eu-%d0%b8-iu-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d1%87%d1%82%d0%be-%d0%b8%d0%b7%d0%bc%d0%b5%d0%bd%d1%8f%d0%b5%d1%82-%d1%82%d0%b8%d0%bf-%d1%83\/\">IU \/ EU \/ IEU upset type<\/a><\/td><td>Changes the transition geometry and internal or external clearance near the \u0442\u0440\u0443\u0431\u0430 end.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD \/ ID<\/td><td>Controls \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 strength, bore clearance and \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-transfer capability.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and shoulder contact<\/td><td>Determines make-up \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, \u0440\u0435\u0437\u044c\u0431\u0430 engagement and load transfer.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Weld zone and transition area<\/td><td>Needs review because \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c often concentrates near geometry changes.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\"><strong>For G105 Drill Pipe and S135 Drill Pipe, the review should identify the first mechanical limit in the complete drill pipe assembly.<\/strong> Increasing the pipe-body grade improves tensile margin, but the operating load still passes through the upset transition, weld zone, tool joint bore, thread profile and shoulder face. If wall thickness, internal clearance, shoulder contact or tool joint dimensions are not matched to the same load case, the selected grade only strengthens the pipe body while the connection area remains the controlling risk point.<\/p>\n\n<h2 class=\"wp-block-heading\">Inspection Records for API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Acceptance<\/h2>\n\n<p class=\"wp-block-paragraph\">API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 acceptance should be verified through a <a href=\"__PROTECTED_0__\">traceable record chain<\/a>, not only by the \u043a\u043b\u0430\u0441\u0441 marking on the \u0442\u0440\u0443\u0431\u0430. The selected \u043a\u043b\u0430\u0441\u0441 must be linked to the \u0442\u0440\u0443\u0431\u0430 identity, heat number, MTC, mechanical test results, dimensional inspection and \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \/ \u0440\u0435\u0437\u044c\u0431\u0430 inspection. This ensures that E75, X95, G105 or S135 is supported by measurable test evidence and that the \u0442\u0440\u0443\u0431\u0430 body, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and release documents refer to the same delivered \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Record Item<\/th><th>Why It Matters<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0442\u0440\u0443\u0431\u0430 marking<\/td><td>Confirms \u043a\u043b\u0430\u0441\u0441, size, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and product identity.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Heat number<\/td><td>Links the \u0442\u0440\u0443\u0431\u0430 body and test data to the production heat.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">MTC<\/td><td>Shows chemical composition and mechanical property basis.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Tensile test<\/td><td>Verifies \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438, \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043d\u0430 \u0440\u0430\u0437\u0440\u044b\u0432 and elongation.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Charpy i\u041c\u041f\u0430ct test<\/td><td>Supports toughness review where required by \u043a\u043b\u0430\u0441\u0441, PSL or project specification.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Hardness record<\/td><td>Important for high-strength \u043a\u043b\u0430\u0441\u0441 review, sour-service control or cracking-risk evaluation.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">NDT report<\/td><td>Supports \u0442\u0440\u0443\u0431\u0430 body, weld zone and defect control.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Dimensional inspection<\/td><td>Confirms OD, \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438, length, straightness and upset area.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 inspection<\/td><td>Confirms \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 dimensions, \u0440\u0435\u0437\u044c\u0431\u0430 condition and shoulder quality.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Final release record<\/td><td>Connects the inspected product with the required \u043a\u043b\u0430\u0441\u0441 and specification basis.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">A clear record chain should connect each inspection item in order:<br\/>\u0442\u0440\u0443\u0431\u0430 marking \u2192 Heat number \u2192 MTC \u2192 Mechanical test report \u2192 Charpy i\u041c\u041f\u0430ct test where required \u2192 Hardness record where required \u2192 NDT report \u2192 Dimensional inspection report \u2192 \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and \u0440\u0435\u0437\u044c\u0431\u0430 inspection \u2192 Final release record.<\/p>\n\n<h2 class=\"wp-block-heading\">When API 5DP \u043a\u043b\u0430\u0441\u0441s Are Not Enough<\/h2>\n\n<p class=\"wp-block-paragraph\">Most \u0431\u0443\u0440\u0435\u043d\u0438\u0435 programs can be reviewed within the <strong>API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s<\/strong> system when the selected \u043a\u043b\u0430\u0441\u0441, size, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and inspection records support the calculated load path. The limitation appears when the controlling factor is no longer basic \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438, but cracking risk, low-temperature toughness, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c accumulation or \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435-side performance.<\/p>\n\n<p class=\"wp-block-paragraph\">A \u0441\u0432\u0435\u0447\u0430ard API \u043a\u043b\u0430\u0441\u0441 becomes insufficient when the controlling factor is:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>severe sour-service or H2S exposure<\/li>\n\n\n\n<li>low-temperature i\u041c\u041f\u0430ct toughness<\/li>\n\n\n\n<li>very long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 rotation<\/li>\n\n\n\n<li>severe dogleg \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c<\/li>\n\n\n\n<li>high \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 beyond normal \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 review<\/li>\n\n\n\n<li>special \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 or \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 matching<\/li>\n\n\n\n<li>tighter hardness or microstructure control<\/li>\n\n\n\n<li>controlled yield-strength window requirement<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">When the limiting factor moves beyond \u0441\u0432\u0435\u0447\u0430ard \u043a\u043b\u0430\u0441\u0441 strength, the review shifts from <strong>API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s<\/strong> to a <a href=\"__PROTECTED_0__\"><strong>Special Material \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> route<\/a>, where chemistry, heat treatment, hardness, i\u041c\u041f\u0430ct toughness, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c-sensitive geometry, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 matching and traceability records become the main control points.<\/p>\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-d61d70aa wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-color has-secondary-background-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.drillpipes.com\/ru\/%d0%ba%d0%be%d0%bd%d1%82%d0%b0%d0%ba%d1%82%d1%8b\/\">Free quotation<\/a><\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading has-secondary-color has-text-color has-link-color wp-elements-1\">FAQ<\/h2>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>F1:What is the difference between E75, X95, G105 and S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430?<\/summary>\n<p class=\"wp-block-paragraph\">Q1:The main difference is the API 5DP strength level. <strong>E75 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> starts at <strong>75 ksi minimum \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438<\/strong>, <strong>X95<\/strong> at <strong>95 ksi<\/strong>, <strong>G105<\/strong> at <strong>105 ksi<\/strong> and <strong>S135<\/strong> at <strong>135 ksi<\/strong>. The \u043a\u043b\u0430\u0441\u0441 should not be selected by \u043f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438 alone. \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 depth, \u043a\u0440\u044e\u043a load, \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, dogleg severity, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure, upset type, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 condition and inspection records should be reviewed together.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>F2:Is S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 always better than G105 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430?<\/summary>\n<p class=\"wp-block-paragraph\">Q2:No. <strong>S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> has a higher strength level than <strong>G105 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong>, but it is not automatically the better \u043a\u043b\u0430\u0441\u0441. If G105 provides enough tensile margin and the \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435, dogleg severity, \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 and \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure remain controlled, G105 can be the more suitable API 5DP \u043a\u043b\u0430\u0441\u0441. S135 becomes more relevant when high \u043a\u0440\u044e\u043a load, long \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 rotation or severe bending makes the G105 margin insufficient.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>F3:How should API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 be selected for deep or \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s?<\/summary>\n<p class=\"wp-block-paragraph\">Q3:For deep or \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s, <strong>API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 selection<\/strong> should start with \u043a\u0440\u044e\u043a load and tensile margin, then move to \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442-\u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, dogleg severity, cyclic bending and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 capacity. <strong>G105 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> is often reviewed for deeper or directional sections with controlled \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c exposure. <strong>S135 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> is reviewed when higher \u043a\u0440\u044e\u043a load, long lateral rotation or high \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 makes the \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 load path more demanding.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>F4:What records verify API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s?<\/summary>\n<p class=\"wp-block-paragraph\">Q4:API 5DP \u043a\u043b\u0430\u0441\u0441 verification should be supported by a traceable record chain, not only by \u0442\u0440\u0443\u0431\u0430 marking. The key records include <strong>heat number, MTC, tensile test, Charpy i\u041c\u041f\u0430ct test where required, hardness record where required, NDT report, dimensional inspection, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 inspection and \u0440\u0435\u0437\u044c\u0431\u0430 inspection<\/strong>. These records confirm whether E75, X95, G105 or S135 is supported by actual test evidence for the delivered \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430.<\/p>\n<\/details>\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"410\" data-id=\"12635\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-1024x410.png\" alt=\"\" class=\"wp-image-12635\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-1024x410.png 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-300x120.png 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-2000x800.png 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>API 5DP Drill Pipe Grade Selection compares E75, X95, G105 and S135 by strength level, load condition and drill string performance. E75 starts at 75 ksi minimum yield strength, X95 at 95 ksi, G105 at 105 ksi and S135 at 135 ksi, but grade selection should not move upward only because the number is higher. &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.drillpipes.com\/ru\/api-5dp-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%ba%d0%bb%d0%b0%d1%81%d1%81-selection-e75-x95-g105-and-s135-co%d0%bc%d0%bf%d0%b0red\/\" class=\"more-link\">\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435<span class=\"screen-reader-text\"> &#171;API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Selection: E75, X95, G105 and S135 Co\u041c\u041f\u0430red&#187;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":15728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[106],"tags":[],"class_list":["post-15724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-106"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Selection<\/title>\n<meta name=\"description\" content=\"Co\u041c\u041f\u0430re API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s E75, X95, G105 and S135 by strength, \u0431\u0443\u0440\u0435\u043d\u0438\u0435 condition, \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442, \u0443\u0441\u0442\u0430\u043b\u043e\u0441\u0442\u044c, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and records.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.drillpipes.com\/ru\/api-5dp-%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%ba%d0%bb%d0%b0%d1%81%d1%81-selection-e75-x95-g105-and-s135-co%d0%bc%d0%bf%d0%b0red\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441 Selection\" \/>\n<meta property=\"og:description\" content=\"Co\u041c\u041f\u0430re API 5DP 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