{"id":15833,"date":"2026-08-19T14:24:50","date_gmt":"2026-08-19T06:24:50","guid":{"rendered":"https:\/\/www.drillpipes.com\/api-%d8%a7%d9%84%d9%85%d9%88%d8%a7%d8%b5%d9%81%d8%a7%d8%aa-7-1-%d8%a7%d9%84%d9%85%d8%b9%d9%8a%d8%a7%d8%b1-for-rotary-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-stem-elements\/"},"modified":"2026-09-18T16:08:02","modified_gmt":"2026-09-18T08:08:02","slug":"api-%d8%a7%d9%84%d9%85%d9%88%d8%a7%d8%b5%d9%81%d8%a7%d8%aa-7-1-%d8%a7%d9%84%d9%85%d8%b9%d9%8a%d8%a7%d8%b1-for-rotary-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-stem-elements","status":"publish","type":"post","link":"https:\/\/www.drillpipes.com\/ar\/api-%d8%a7%d9%84%d9%85%d9%88%d8%a7%d8%b5%d9%81%d8%a7%d8%aa-7-1-%d8%a7%d9%84%d9%85%d8%b9%d9%8a%d8%a7%d8%b1-for-rotary-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-stem-elements\/","title":{"rendered":"API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 for Rotary \u0627\u0644\u062d\u0641\u0631 Stem Elements"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 is the API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a for covered rotary \u0627\u0644\u062d\u0641\u0631 stem elements used in the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 and bottom-hole assembly, iNCluding \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631s, heavy \u0627\u0644\u0648\u0632\u0646 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631, kellys, \u0627\u0644\u062d\u0641\u0631 stem subs, kelly valves and stabilizers. These components are not \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631,they are used to add \u0627\u0644\u0648\u0632\u0646 and stIFfness, transmit \u0639\u0632\u0645 \u0627\u0644\u062f\u0648\u0631\u0627\u0646, connect \u0627\u0644\u062d\u0641\u0631-string sections, stabilize the BHA, or tensile, compressive and bending loads. The API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 defines the main manufacturing, \u0627\u0644\u062a\u0641\u062a\u064a\u0634, marking and release requirements for these products. In procurement documents, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 helps convert product names such as \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631, HWDP or stabilizer into measurable ordering and acceptaNCe requirements.In practical use, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 refers to the \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a designation used in RFQs, quotations, purchase orders and product descriptions. The API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 refers to the complete technical document used to control production, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 and \u0627\u0644\u062a\u0633\u0644\u064a\u0645 acceptaNCe.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-Standard-for-Rotary-Drill-Stem-Elements-1024x576.jpg\" alt=\"\" class=\"wp-image-13984\" style=\"width:1137px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-Standard-for-Rotary-Drill-Stem-Elements-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-Standard-for-Rotary-Drill-Stem-Elements-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-Standard-for-Rotary-Drill-Stem-Elements.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">For buyers, the key point is to apply the correct \u0627\u0644\u0645\u0639\u064a\u0627\u0631 to the correct product. API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 is used for covered rotary \u0627\u0644\u062d\u0641\u0631 stem elements. \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 should normally be \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062aIFied under API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP, while rotary shouldered \u0627\u0644\u0648\u0635\u0644\u0629 \u0627\u0644\u062e\u064a\u0648\u0637 and gauging should be reviewed under API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>API SPEC 7-1 Latest Edition and Document Status<\/strong><strong><\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">For procurement and \u0627\u0644\u062a\u0641\u062a\u064a\u0634 planning, the applicable edition of <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1<\/strong>\u00a0should be confirmed before the RFQ or purchase order is issued. Current \u0627\u0644\u0645\u0639\u064a\u0627\u0631-store records list <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1, Rotary \u0627\u0644\u062d\u0641\u0631 Stem Elements, Second Edition, February 2023<\/strong>, with later updates iNCluding Errata 1, Addendum 1 and Errata 2. API\u2019s official Errata 2 notice also identIFies the affected publication as <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1, Rotary \u0627\u0644\u062d\u0641\u0631 Stem Elements, Second Edition, February 2023<\/strong>.<\/p>\n\n<p class=\"wp-block-paragraph\">This edition check matters because the \u0627\u0644\u0645\u0648\u0631\u062f, buyer and third-party in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062ator should work from the same controlled \u0627\u0644\u0645\u0639\u064a\u0627\u0631 basis. IF the purchase order only states \u201cAPI 7-1\u201d without edition or update requirements, acceptaNCe details may be interpreted dIFferently during production, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 or final document review.<\/p>\n\n<p class=\"wp-block-paragraph\">A clear RFQ should state the required API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 edition, applicable addenda or errata, product type, \u0627\u0644\u0648\u0635\u0644\u0629 requirement, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 scope and release documents. This keeps the \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0634\u0647\u0627\u062f\u0629, NDT report, \u0627\u0644\u0628\u0639\u062fal \u0627\u0644\u062a\u0641\u062a\u064a\u0634, \u0627\u0644\u0648\u0635\u0644\u0629 gauging record and marking review aligned with the same \u0627\u0644\u0645\u0639\u064a\u0627\u0631 basis.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Products Covered by API SPEC 7-1<\/strong><strong><\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 covers selected <strong>rotary \u0627\u0644\u062d\u0641\u0631 stem elements<\/strong>\u00a0used in the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 and bottom-hole assembly. These products are not grouped only by name; they are controlled because they transmit \u0639\u0632\u0645 \u0627\u0644\u062f\u0648\u0631\u0627\u0646, add stIFfness or \u0627\u0644\u0648\u0632\u0646, connect dIFferent \u0627\u0644\u062d\u0641\u0631-string members, stabilize the BHA, or provide a defined interface for \u0627\u0644\u062d\u0641\u0631 and coring tools.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-PRODUCT-GROUP-SUMMARY-1024x683.jpg\" alt=\"\" class=\"wp-image-14017\" style=\"aspect-ratio:1.4992793575987737;width:1200px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-PRODUCT-GROUP-SUMMARY-1024x683.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-PRODUCT-GROUP-SUMMARY-300x200.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-PRODUCT-GROUP-SUMMARY.jpg 1535w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">For procurement, the important point is to confirm whether the ordered item is actually within the API 7-1 product scope, and then define the correct \u0627\u0644\u0645\u0627\u062f\u0629, geometry, \u0627\u0644\u0648\u0635\u0644\u0629, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 and release documents. A product name alone is not enough for technical acceptaNCe.<\/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\/07\/API_SPEC_7-1_Product_Scope_and_Ordering_Matrix.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u062a\u0636\u0645\u064a\u0646 API_SPEC_7-1_Product_Scope_and_Ordering_Matrix.\"><\/object><a id=\"wp-block-file--media-2a7dd902-c537-4ce2-a103-73e6ad823d27\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API_SPEC_7-1_Product_Scope_and_Ordering_Matrix.pdf\">API_\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a_7-1_Product_Scope_and_Ordering_Matrix<\/a><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>API SPEC 7-1, API SPEC 7-2 and API SPEC 5DP: Correct Stand<\/strong><strong><\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2 and API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP are often mentioned together in \u0627\u0644\u062d\u0641\u0631-string procurement, but they do not control the same part of the product. <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-<\/strong>\u00a0applies to sele<strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2<\/strong>\u00a0controls rotar<strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5<\/strong>\u00a0applies to standa<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"519\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-API-SPEC-7-2-and-API-SPEC-5DP-Correct-Standard-Scope-e1783325930512-1024x519.jpg\" alt=\"\" class=\"wp-image-13989\" style=\"width:1139px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-API-SPEC-7-2-and-API-SPEC-5DP-Correct-Standard-Scope-e1783325930512-1024x519.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-API-SPEC-7-2-and-API-SPEC-5DP-Correct-Standard-Scope-e1783325930512-300x152.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-API-SPEC-7-2-and-API-SPEC-5DP-Correct-Standard-Scope-e1783325930512-768x389.jpg 768w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-API-SPEC-7-2-and-API-SPEC-5DP-Correct-Standard-Scope-e1783325930512-1536x778.jpg 1536w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-SPEC-7-1-API-SPEC-7-2-and-API-SPEC-5DP-Correct-Standard-Scope-e1783325930512.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">The simplest way to separate them is this: <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 controls the covered \u0627\u0644\u062d\u0641\u0631 component, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2 controls the rotary shouldered \u0627\u0644\u0648\u0635\u0644\u0629, and API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP controls \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">A \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631, HWDP, kelly, sub or stabilizer may be ordered under <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1<\/strong>, but its \u0627\u0644\u0648\u0635\u0644\u0629 should still be checked according to <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2<\/strong>\u00a0when a rotary shouldered \u0627\u0644\u0648\u0635\u0644\u0629 is involved. \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 should normally be \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062aIFied under <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP<\/strong>, because the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body, \u0627\u0644\u062f\u0631\u062c\u0629, PSL, upset ends, \u0645\u0644\u062d\u0648\u0645 \u0627\u0644\u0648\u0635\u0644\u0629s and \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 \u0627\u0644\u062a\u0633\u0644\u064a\u0645 requirements belong to that \u0627\u0644\u0645\u0639\u064a\u0627\u0631 logic.<\/p>\n\n<p class=\"wp-block-paragraph\">For HWDP, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 should be used for the product body, \u0627\u0644\u0645\u0627\u062f\u0629 control, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 and release requirements, while API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2 should be \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062aIFied for rotary shouldered \u0627\u0644\u0648\u0635\u0644\u0629 \u0627\u0644\u062e\u064a\u0648\u0637 and gauging. For \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP should be used for the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body, \u0627\u0644\u062f\u0631\u062c\u0629, PSL, upset ends and \u0645\u0644\u062d\u0648\u0645 \u0627\u0644\u0648\u0635\u0644\u0629s, while API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2 should still be used for the \u0627\u0644\u0648\u0635\u0644\u0629. This prevents the \u0627\u0644\u0645\u0648\u0631\u062f, buyer and third-party in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062ator from using dIFferent acceptaNCe criteria during production, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 and final document review.<\/p>\n\n<p class=\"wp-block-paragraph\">API 7-2 \u0627\u0644\u0648\u0635\u0644\u0629 acceptaNCe should be supported by \u0627\u0644\u062e\u064a\u0637 gauging records and shoulder-condition checks. API 5DP \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 should iNClude \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 body, \u0627\u0644\u0648\u0635\u0644\u0629, weld-zone, \u0627\u0644\u062f\u0631\u062c\u0629, PSL and traceability records. This \u0627\u0644\u0645\u0639\u064a\u0627\u0631 separation makes the purchase order easier to in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062at and reduces disputes before shipment release.<\/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\/07\/API_SPEC_7-1_7-2_5DP_Standard_Boundary_Guide-6.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u062a\u0636\u0645\u064a\u0646 API_SPEC_7-1_7-2_5DP_Standard_Boundary_Guide.\"><\/object><a id=\"wp-block-file--media-20351965-78d5-4cae-956d-dfd5cf7e5c41\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API_SPEC_7-1_7-2_5DP_Standard_Boundary_Guide-6.pdf\">API_\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a_7-1_7-2_5DP_\u0627\u0644\u0645\u0639\u064a\u0627\u0631_Boundary_Guide<\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API_SPEC_7-1_7-2_5DP_Standard_Boundary_Guide-6.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-20351965-78d5-4cae-956d-dfd5cf7e5c41\">Download<\/a><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>RFQ and Standard Scope Review for API SPEC 7-1<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Before issuing an RFQ or purchase order, the buyer should first confirm whether the ordered item belongs to <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1<\/strong> scope or another API \u0627\u0644\u0645\u0639\u064a\u0627\u0631. API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 applies to covered rotary \u0627\u0644\u062d\u0641\u0631 stem elements such as <strong>HWDP, \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631s, kellys, \u0627\u0644\u062d\u0641\u0631 stem subs and stabilizers<\/strong>. \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 should normally be \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062aIFied under <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP<\/strong>, while rotary shouldered \u0627\u0644\u0648\u0635\u0644\u0629 \u0627\u0644\u062e\u064a\u0648\u0637 and gauging should be controlled under <strong>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2<\/strong>.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-RFQ-to-Shipment-Release-Workflow-1024x576.jpg\" alt=\"\" class=\"wp-image-13992\" style=\"width:1181px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-RFQ-to-Shipment-Release-Workflow-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-RFQ-to-Shipment-Release-Workflow-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-RFQ-to-Shipment-Release-Workflow.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">This \u0627\u0644\u0645\u0639\u064a\u0627\u0631 separation is important because one \u0627\u0644\u062d\u0641\u0631-string package may iNClude several dIFferent products. A \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 line may require API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP for the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body, \u0627\u0644\u062f\u0631\u062c\u0629, PSL, upset ends and \u0645\u0644\u062d\u0648\u0645 \u0627\u0644\u0648\u0635\u0644\u0629s. An HWDP or \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631 line may require API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 for product manufacturing, \u0627\u0644\u062a\u0641\u062a\u064a\u0634, marking and \u0627\u0644\u062a\u0633\u0644\u064a\u0645 release. The \u0627\u0644\u0648\u0635\u0644\u0629 on either product may still require API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2 for \u0627\u0644\u062e\u064a\u0637 form, shoulder condition, \u0627\u0644\u0628\u0639\u062fal conformity and gauging records.<\/p>\n\n<p class=\"wp-block-paragraph\"> The purchase order should not rely only on a general product name such as \u201c\u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631\u201d or \u201cHWDP.\u201d It should state the applicable \u0627\u0644\u0645\u0639\u064a\u0627\u0631 edition, OD, ID, \u0627\u0644\u0637\u0648\u0644, \u0627\u0644\u0648\u0635\u0644\u0629 type, \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u062f\u0631\u062c\u0629, NDT scope, \u0627\u0644\u0628\u0639\u062fal \u0627\u0644\u062a\u0641\u062a\u064a\u0634, \u0627\u0644\u0648\u0635\u0644\u0629 gauging requirement and final document package.<\/p>\n\n<p class=\"wp-block-paragraph\">A practical RFQ line may be written as follows:<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Heavy Weight Drill Pipe, API SPEC 7-1, 5 in OD, NC50 connection, welded or integral construction as specified, API SPEC 7-2 thread gauging required, NDT and dimensional inspection per approved ITP, MTC, heat-treatment record, hardness report, connection gauging record, final inspection report and packing list required.<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">For \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631s, kellys, subs and stabilizers, the same logic applies: confirm the correct \u0627\u0644\u0645\u0639\u064a\u0627\u0631 first, then define the product geometry, \u0627\u0644\u0648\u0635\u0644\u0629 requirement, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 scope and release records. IF <strong>\u0634\u0639\u0627\u0631 API marking<\/strong> is required, it should be written as a separate purchase requirement rather than assumed from API 7-1 compliaNCe.<\/p>\n\n<p class=\"wp-block-paragraph\">This approach helps the \u0627\u0644\u0645\u0648\u0631\u062f, buyer and third-party in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062ator work from the same technical basis. It also reduces disputes during production, document review and shipment release, e\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062aially when API 7-1 products, API 5DP \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 and API 7-2 \u0627\u0644\u0648\u0635\u0644\u0629s appear in the same order.<\/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\/07\/API_SPEC_7-1_RFQ_and_PO_Review_Checklist_v2.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u062a\u0636\u0645\u064a\u0646 API_SPEC_7-1_RFQ_and_PO_Review_Checklist_v2.\"><\/object><a id=\"wp-block-file--media-634f2868-fa85-4b0a-925b-a7ceb3c75c9f\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API_SPEC_7-1_RFQ_and_PO_Review_Checklist_v2.pdf\">API_\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a_7-1_RFQ_and_PO_Review_Checklist_v2<\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API_SPEC_7-1_RFQ_and_PO_Review_Checklist_v2.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-634f2868-fa85-4b0a-925b-a7ceb3c75c9f\">Download<\/a><\/div>\n\n<h2 class=\"wp-block-heading\">\u0634\u0639\u0627\u0631 API Marking and API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 CompliaNCe<\/h2>\n\n<p class=\"wp-block-paragraph\">API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 compliaNCe and \u0634\u0639\u0627\u0631 API marking are dIFferent purchase requirements.<\/p>\n\n<p class=\"wp-block-paragraph\">API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 compliaNCe means the product is \u0627\u0644\u062a\u0635\u0646\u064a\u0639d, in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062ated and released according to the applicable API 7-1 technical requirements. \u0634\u0639\u0627\u0631 API marking means the product is marked by an API-licensed \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629 within its approved license scope.<\/p>\n\n<p class=\"wp-block-paragraph\">For procurement, the RFQ or purchase order should clearly state whether \u0634\u0639\u0627\u0631 API marking is required. IF \u0634\u0639\u0627\u0631 API is not required, the buyer should still request complete API 7-1 compliaNCe documents, iNCluding MTC, heat-treatment record, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 reports, \u0627\u0644\u0648\u0635\u0644\u0629 gauging record, marking verIFication and packing-list traceability.<\/p>\n\n<h2 class=\"wp-block-heading\">API 7-1 AcceptaNCe Checks and Required Release Records<\/h2>\n\n<p class=\"wp-block-paragraph\">API 7-1 acceptaNCe is not only a document collection process. Each \u0627\u0644\u062a\u0641\u062a\u064a\u0634 item should prove that the delivered rotary \u0627\u0644\u062d\u0641\u0631 stem element matches the purchase order, the approved product scope and the agreed technical requirements. For buyers and third-party in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062ators, the main purpose is to confirm three things before shipment release: the product is correctly identIFied, the critical manufacturing steps are controlled, and the final records are traceable to the same heat number, lot number and product marking.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"725\" height=\"1024\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-ACCEPTANCE-REVIEW-CHECKLIST-725x1024.jpg\" alt=\"\" class=\"wp-image-14067\" style=\"aspect-ratio:0.7080120683875293;width:993px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-ACCEPTANCE-REVIEW-CHECKLIST-725x1024.jpg 725w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-ACCEPTANCE-REVIEW-CHECKLIST-212x300.jpg 212w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-ACCEPTANCE-REVIEW-CHECKLIST.jpg 1055w\" sizes=\"auto, (max-width: 725px) 100vw, 725px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">The release package should show one continuous traceability chain: <strong>product marking \u2192 heat number \u2192 MTC \u2192 heat-treatment record \u2192 mechanical test report \u2192 \u0627\u0644\u0635\u0644\u0627\u0628\u0629 record \u2192 NDT report \u2192 \u0627\u0644\u0628\u0639\u062fal \u0627\u0644\u062a\u0641\u062a\u064a\u0634 \u2192 \u0627\u0644\u0648\u0635\u0644\u0629 gauging record \u2192 final \u0627\u0644\u062a\u0641\u062a\u064a\u0634 \u2192 packing list<\/strong>.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-PRODUCT-TRACEABILITY-CHAIN-1024x576.jpg\" alt=\"\" class=\"wp-image-13982\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-PRODUCT-TRACEABILITY-CHAIN-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-PRODUCT-TRACEABILITY-CHAIN-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/07\/API-7-1-PRODUCT-TRACEABILITY-CHAIN.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">CoNClusion<\/h2>\n\n<p class=\"wp-block-paragraph\">API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 should be used as a practical purchasing and \u0627\u0644\u062a\u0641\u062a\u064a\u0634 basis for covered rotary \u0627\u0644\u062d\u0641\u0631 stem elements, not just as a \u0627\u0644\u0645\u0639\u064a\u0627\u0631 name in a quotation. For products such as HWDP, \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631s, kellys, \u0627\u0644\u062d\u0641\u0631 stem subs and stabilizers, buyers should confirm the product scope, \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u062f\u0631\u062c\u0629, \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629, \u0627\u0644\u0628\u0639\u062fs, \u0627\u0644\u0648\u0635\u0644\u0629 type, \u0627\u0644\u062a\u0641\u062a\u064a\u0634 requirements and final release documents before production starts.<\/p>\n\n<p class=\"wp-block-paragraph\">The safest approach is to match each item with the correct \u0627\u0644\u0645\u0639\u064a\u0627\u0631. API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 applies to covered rotary \u0627\u0644\u062d\u0641\u0631 stem elements, API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-2 should be used for rotary shouldered \u0627\u0644\u0648\u0635\u0644\u0629 \u0627\u0644\u062e\u064a\u0648\u0637 and gauging, and API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 5DP should be used for \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631. This avoids confusion between product-body requirements, \u0627\u0644\u0648\u0635\u0644\u0629 requirements and \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 \u0627\u0644\u062a\u0633\u0644\u064a\u0645 requirements.<\/p>\n\n<p class=\"wp-block-paragraph\">Before shipment release, the buyer should review a complete traceability package, iNCluding MTC, heat-treatment record, mechanical test report, \u0627\u0644\u0635\u0644\u0627\u0628\u0629 record, NDT report, \u0627\u0644\u0628\u0639\u062fal \u0627\u0644\u062a\u0641\u062a\u064a\u0634, \u0627\u0644\u0648\u0635\u0644\u0629 gauging record, marking verIFication and packing list. When these records match the product marking and purchase order, the API 7-1 product can be in\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062ated, accepted and released with much less technical risk.<\/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\/ar\/%d8%a7%d8%aa%d8%b5%d9%84-%d8%a8%d9%86%d8%a7\/\">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><strong>Q: What is API SPEC 7-1 used for?<\/strong><\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong>\u00a0API SPEC 7-1 is used for rotary drill stem elements such as drill collars, HWDP, kellys, drill stem subs and stabilizers. It helps define product scope, material, manufacturing, inspection, marking and delivery requirements.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q: What is the latest edition of API SPEC 7-1?<\/strong><\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong>\u00a0Current standard-store records list API Spec 7-1 as the Second Edition, published in February 2023, with Errata 1, Addendum 1 and Errata 2 updates included. Project teams should verify the controlled edition and updates before issuing a PO.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q: Does API SPEC 7-1 cover standard drill pipe?<\/strong><\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong>\u00a0No. Standard drill pipe is normally specified under API SPEC 5DP. API SPEC 7-1 covers rotary drill stem elements such as HWDP, drill collars, kellys, subs and stabilizers.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q: What is the difference between API SPEC 7-1 and API SPEC 7-2?<\/strong><\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong>\u00a0API SPEC 7-1 covers selected rotary drill stem elements as products. API SPEC 7-2 covers threading and gauging requirements for rotary shouldered connections.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q: Should API Monogram be written in the purchase order?<\/strong><\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong>\u00a0Yes. If the project requires API Monogram marking, it should be stated clearly in the RFQ and PO. API 7-1 compliance and API Monogram marking are related, but they are not the same purchase requirement.<\/p>\n<\/details>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"410\" 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","protected":false},"excerpt":{"rendered":"<p>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 is the API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a for covered rotary \u0627\u0644\u062d\u0641\u0631 stem elements used in the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 and bottom-hole assembly, iNCluding \u062f\u0631\u064a\u0644 \u0643\u0648\u0644\u0631s, heavy \u0627\u0644\u0648\u0632\u0646 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631, kellys, \u0627\u0644\u062d\u0641\u0631 stem subs, kelly valves and stabilizers. These components are not \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631,they are used to add \u0627\u0644\u0648\u0632\u0646 and stIFfness, transmit \u0639\u0632\u0645 \u0627\u0644\u062f\u0648\u0631\u0627\u0646, connect \u0627\u0644\u062d\u0641\u0631-string &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.drillpipes.com\/ar\/api-%d8%a7%d9%84%d9%85%d9%88%d8%a7%d8%b5%d9%81%d8%a7%d8%aa-7-1-%d8%a7%d9%84%d9%85%d8%b9%d9%8a%d8%a7%d8%b1-for-rotary-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-stem-elements\/\" class=\"more-link\">Read more<span class=\"screen-reader-text\"> &#8220;API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 for Rotary \u0627\u0644\u062d\u0641\u0631 Stem Elements&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":15849,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[105],"tags":[],"class_list":["post-15833","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-105"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 for Rotary \u0627\u0644\u062d\u0641\u0631 Stem Elements<\/title>\n<meta name=\"description\" content=\"API \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a 7-1 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 controls rotary \u0627\u0644\u062d\u0641\u0631 stem elements used in \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631s and BHA assemblies,defines rotary 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