{"id":982,"date":"2026-04-12T23:09:03","date_gmt":"2026-04-13T03:09:03","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=982"},"modified":"2026-04-12T23:19:50","modified_gmt":"2026-04-13T03:19:50","slug":"steel-flange-materials-guide-carbon-stainless-and-alloy-selection","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/pa\/2026\/04\/12\/steel-flange-materials-guide-carbon-stainless-and-alloy-selection\/","title":{"rendered":"\u0a38\u0a1f\u0a40\u0a32 \u0a2b\u0a32\u0a48\u0a02\u0a1c \u0a38\u0a2e\u0a71\u0a17\u0a30\u0a40 \u0a17\u0a3e\u0a08\u0a21: \u0a15\u0a3e\u0a30\u0a2c\u0a28, \u0a38\u0a1f\u0a47\u0a28\u0a32\u0a48\u0a71\u0a38 \u0a05\u0a24\u0a47 \u0a10\u0a32\u0a4b\u0a0f \u0a26\u0a40 \u0a1a\u0a4b\u0a23"},"content":{"rendered":"<h2>Choosing the Right Flange Material<\/h2>\n<p>Material selection is critical. Wrong choice leads to premature failure, corrosion, and safety incidents.<\/p>\n<h2>Carbon Steel Flanges<\/h2>\n<h3>ASTM A105<\/h3>\n<p>Industry workhorse for general service.<\/p>\n<ul>\n<li>Applications: Oil\/gas pipelines, petrochemical, power generation<\/li>\n<li>Temperature: -20F to 800F<\/li>\n<li>Tensile: 70,000 psi min<\/li>\n<\/ul>\n<h3>ASTM A350 LF2<\/h3>\n<p>Low-temperature with Charpy testing.<\/p>\n<ul>\n<li>Applications: LNG, cryogenic, cold climate<\/li>\n<li>Temperature: -50F to 800F<\/li>\n<\/ul>\n<h2>Stainless Steel Flanges<\/h2>\n<h3>304\/304L (F304\/F304L)<\/h3>\n<ul>\n<li>Applications: Food\/beverage, pharmaceutical, chemical<\/li>\n<li>Excellent general corrosion resistance<\/li>\n<\/ul>\n<h3>316\/316L (F316\/F316L)<\/h3>\n<ul>\n<li>Applications: Offshore, seawater, marine<\/li>\n<li>Superior chloride resistance (2-3% Moly)<\/li>\n<\/ul>\n<h2>Alloy Steel Flanges<\/h2>\n<h3>Chrome-Moly (F11, F22, F91)<\/h3>\n<ul>\n<li>F11: Up to 1000F, steam lines<\/li>\n<li>F22: Up to 1100F, high-pressure steam<\/li>\n<li>F91: Up to 1200F, ultra-supercritical plants<\/li>\n<\/ul>\n<h2>Specialty Materials<\/h2>\n<ul>\n<li><strong>Duplex (2205, 2507):<\/strong> Offshore seawater, desalination<\/li>\n<li><strong>Nickel Alloys:<\/strong> Inconel, Hastelloy for extreme corrosion<\/li>\n<\/ul>\n<h2>Selection Factors<\/h2>\n<ol>\n<li>Process fluid corrosivity<\/li>\n<li>Operating temperature\/pressure<\/li>\n<li>Environment (coastal, industrial)<\/li>\n<li>Design life and total cost<\/li>\n<\/ol>\n<h2>Songhai Capabilities<\/h2>\n<ul>\n<li>Carbon: A105, A350 LF2, A694<\/li>\n<li>Stainless: 304\/304L, 316\/316L, 321, 347<\/li>\n<li>Duplex: 2205, 2507<\/li>\n<li>\u0a2e\u0a3f\u0a38\u0a3c\u0a30\u0a24 \u0a27\u0a3e\u0a24: F11, F22, F91<\/li>\n<li>Nickel: Inconel 625, Hastelloy C276<\/li>\n<\/ul>\n<p>All materials with MTRs and PED\/NACE certification available.<\/p>\n<p><strong>\u0a35\u0a1f\u0a38\u0a10\u0a2a:<\/strong>\u00a0+86-18658777855<br \/>\n<strong>\u0a08\u0a2e\u0a47\u0a32:<\/strong>\u00a01007788887@qq.com<br \/>\n<a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\"><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\" 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>\u0a38\u0a39\u0a40 \u0a2b\u0a32\u0a48\u0a02\u0a1c \u0a38\u0a2e\u0a71\u0a17\u0a30\u0a40 \u0a26\u0a40 \u0a1a\u0a4b\u0a23   \u0a38\u0a2e\u0a71\u0a17\u0a30\u0a40 \u0a26\u0a40 \u0a1a\u0a4b\u0a23 \u0a2c\u0a39\u0a41\u0a24 \u0a2e\u0a39\u0a71\u0a24\u0a35\u0a2a\u0a42\u0a30\u0a28 \u0a39\u0a48\u0964 \u0a17\u0a32\u0a24 \u0a1a\u0a4b\u0a23 \u0a38\u0a2e\u0a47\u0a02 \u0a24\u0a4b\u0a02 \u0a2a\u0a39\u0a3f\u0a32\u0a3e\u0a02 \u0a35\u0a3f\u0a2b\u0a32\u0a24\u0a3e, \u0a1c\u0a70\u0a17 \u0a05\u0a24\u0a47 \u0a38\u0a41\u0a30\u0a71\u0a16\u0a3f\u0a06 \u0a18\u0a1f\u0a28\u0a3e\u0a35\u0a3e\u0a02 \u0a26\u0a3e \u0a15\u0a3e\u0a30\u0a28 \u0a2c\u0a23\u0a26\u0a40 \u0a39\u0a48\u0964 \u0a15\u0a3e\u0a30\u0a2c\u0a28 \u0a38\u0a1f\u0a40\u0a32 \u0a2b\u0a32\u0a48\u0a02\u0a1c ASTM A105 \u0a06\u0a2e \u0a38\u0a47\u0a35\u0a3e \u0a32\u0a08 \u0a09\u0a26\u0a2f\u0a4b\u0a17 \u0a26\u0a3e \u0a2e\u0a1c\u0a3c\u0a2c\u0a42\u0a24 \u0a38\u0a3e\u0a25\u0a40\u0964   \u0a32\u0a3e\u0a17\u0a42: \u0a24\u0a47\u0a32\/\u0a17\u0a48\u0a38 \u0a2a\u0a3e\u0a08\u0a2a\u0a32\u0a3e\u0a08\u0a28\u0a3e\u0a02, \u0a2a\u0a48\u0a1f\u0a30\u0a4b\u0a15\u0a47\u0a2e\u0a3f\u0a15\u0a32, \u0a2c\u0a3f\u0a1c\u0a32\u0a40 \u0a09\u0a24\u0a2a\u0a3e\u0a26\u0a28   \u0a24\u0a3e\u0a2a\u0a2e\u0a3e\u0a28: -20\u00b0F \u0a24\u0a4b\u0a02 800\u00b0F   \u0a1f\u0a48\u0a02\u0a38\u0a3e\u0a08\u0a32: 70,000 psi \u0a18\u0a71\u0a1f\u0a4b-\u0a18\u0a71\u0a1f   ASTM A350 LF2 \u0a18\u0a71\u0a1f \u0a24\u0a3e\u0a2a\u0a2e\u0a3e\u0a28 \u0a32\u0a08 \u0a1a\u0a3e\u0a30\u0a2a\u0a40 \u0a1f\u0a48\u0a38\u0a1f\u0a3f\u0a70\u0a17 \u0a38\u0a2e\u0a47\u0a24\u0964   \u0a32\u0a3e\u0a17\u0a42: LNG, \u0a15\u0a4d\u0a30\u0a3e\u0a07\u0a13\u0a1c\u0a48\u0a28\u0a3f\u0a15, \u0a20\u0a70\u0a22\u0a3e \u0a2e\u0a4c\u0a38\u0a2e [\u2026]<\/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-982","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/posts\/982","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/comments?post=982"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/posts\/982\/revisions"}],"predecessor-version":[{"id":986,"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/posts\/982\/revisions\/986"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/media?parent=982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/categories?post=982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/pa\/wp-json\/wp\/v2\/tags?post=982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}