{"id":880,"date":"2026-04-10T08:30:18","date_gmt":"2026-04-10T00:30:18","guid":{"rendered":""},"modified":"2026-04-09T22:14:36","modified_gmt":"2026-04-10T02:14:36","slug":"gost-flange-standards-russian-cis-market","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/de\/2026\/04\/10\/gost-flange-standards-russian-cis-market\/","title":{"rendered":"GOST Flange Standards Guide Russian CIS Market"},"content":{"rendered":"<h1>GOST Flange Standards: Complete Guide for Russian and CIS Markets<\/h1>\n<p><strong>GOST standards are mandatory for pipeline projects in Russia, Kazakhstan, Belarus, and CIS countries.<\/strong><\/p>\n<h2>Key GOST Flange Standards<\/h2>\n<ul>\n<li>GOST 12820-80: Steel flat welded flanges (weld neck)<\/li>\n<li>GOST 12821-80: Steel loose welded flanges (threaded)<\/li>\n<li>GOST 12822-80: Steel blind flanges<\/li>\n<\/ul>\n<h2>GOST Pressure Ratings (PN System)<\/h2>\n<p>PN1.0 (10 bar), PN1.6 (16 bar), PN2.5 (25 bar), PN4.0 (40 bar), PN6.3 (63 bar), PN10.0 (100 bar), PN16.0 (160 bar), PN20.0 (200 bar)<\/p>\n<h2>GOST Material Grades<\/h2>\n<p><strong>Stainless:<\/strong> 08\u042518\u041d10 (304), 03\u042517\u041d14\u041c3 (316L), 12\u042518\u041d10\u0422 (321)<\/p>\n<p><strong>Carbon:<\/strong> \u0421\u044220, 09\u04132\u0421 (low-temp), 17\u04131\u0421 (pipeline)<\/p>\n<h2>CIS Market Applications<\/h2>\n<ul>\n<li>Oil &amp; Gas: Gazprom, Transneft, Lukoil projects<\/li>\n<li>Petrochemical: Sibur, Tatneft refineries<\/li>\n<li>District Heating: Municipal systems (PN16-PN25)<\/li>\n<li>Water Infrastructure and Power Generation<\/li>\n<\/ul>\n<h2>Certification Requirements<\/h2>\n<p>GOST-R or EAC certificate, material certificates, dimensional reports, pressure test certificates required.<\/p>\n<p><strong>GOST flange inquiry:<\/strong> Email: 1007788887@qq.com | WhatsApp: +86-18658777855<\/p>\n<p><a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-884\" src=\"http:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp\" alt=\"\" width=\"1290\" height=\"2317\" title=\"\" srcset=\"https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp 1290w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-167x300.webp 167w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-570x1024.webp 570w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-768x1379.webp 768w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-855x1536.webp 855w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-1140x2048.webp 1140w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-7x12.webp 7w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-416x747.webp 416w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Complete GOST flange guide: GOST 12820-80, 12821-80, 12822-80. PN ratings, material grades for Russia and CIS markets.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-880","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/posts\/880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/comments?post=880"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/posts\/880\/revisions"}],"predecessor-version":[{"id":890,"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/posts\/880\/revisions\/890"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/media?parent=880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/categories?post=880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/de\/wp-json\/wp\/v2\/tags?post=880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}