{"id":1040,"date":"2026-04-22T03:37:11","date_gmt":"2026-04-22T07:37:11","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=1040"},"modified":"2026-04-22T20:20:35","modified_gmt":"2026-04-23T00:20:35","slug":"stainless-steel-304-vs-316-flange-material-selection-for-corrosive-environments","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/vi\/2026\/04\/22\/stainless-steel-304-vs-316-flange-material-selection-for-corrosive-environments\/","title":{"rendered":"L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u m\u1eb7t b\u00edch th\u00e9p kh\u00f4ng g\u1ec9 304 v\u00e0 316 cho m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n"},"content":{"rendered":"<h2>M\u1eb7t b\u00edch th\u00e9p kh\u00f4ng g\u1ec9 304 so v\u1edbi 316<\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa m\u1eb7t b\u00edch th\u00e9p kh\u00f4ng g\u1ec9 304 v\u00e0 316 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t l\u00e2u d\u00e0i trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n. Hi\u1ec3u r\u00f5 nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh s\u1ebd gi\u00fap ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng h\u1ecfng h\u00f3c s\u1edbm v\u00e0 chi ph\u00ed thay th\u1ebf t\u1ed1n k\u00e9m.<\/p>\n<h3>So s\u00e1nh th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc<\/h3>\n<table>\n<tr>\n<th>Y\u1ebfu t\u1ed1<\/th>\n<th>304 (th\u00e9p kh\u00f4ng g\u1ec9)<\/th>\n<th>316 (th\u00e9p kh\u00f4ng g\u1ec9)<\/th>\n<\/tr>\n<tr>\n<td>Chromium<\/td>\n<td>18-20%<\/td>\n<td>16-18%<\/td>\n<\/tr>\n<tr>\n<td>Niken<\/td>\n<td>8-10.5%<\/td>\n<td>10-14%<\/td>\n<\/tr>\n<tr>\n<td>Molypden<\/td>\n<td>Kh\u00f4ng c\u00f3<\/td>\n<td>2-3%<\/td>\n<\/tr>\n<tr>\n<td>Cacbon<\/td>\n<td>T\u1ed1i \u0111a 0,08%<\/td>\n<td>T\u1ed1i \u0111a 0,08%<\/td>\n<\/tr>\n<\/table>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh: Molypden<\/h3>\n<p>Vi\u1ec7c b\u1ed5 sung molypden 2-3% v\u00e0o th\u00e9p kh\u00f4ng g\u1ec9 316 gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ee3p ch\u1ea5t clorua v\u00e0 dung m\u00f4i c\u00f4ng nghi\u1ec7p.<\/p>\n<h3>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/h3>\n<h4>Th\u00e9p kh\u00f4ng g\u1ec9 304<\/h4>\n<ul>\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n do t\u00e1c \u0111\u1ed9ng c\u1ee7a m\u00f4i tr\u01b0\u1eddng r\u1ea5t t\u1ed1t<\/li>\n<li>C\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu t\u1ed1t v\u1edbi c\u00e1c h\u00f3a ch\u1ea5t h\u1eefu c\u01a1 v\u00e0 v\u00f4 c\u01a1<\/li>\n<li>Ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng trong ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m v\u00e0 d\u01b0\u1ee3c ph\u1ea9m<\/li>\n<li>D\u1ec5 b\u1ecb \u0103n m\u00f2n l\u1ed7 do clorua v\u00e0 \u0103n m\u00f2n khe h\u1edf<\/li>\n<\/ul>\n<h4>Th\u00e9p kh\u00f4ng g\u1ec9 316<\/h4>\n<ul>\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng clorua v\u01b0\u1ee3t tr\u1ed9i (n\u01b0\u1edbc bi\u1ec3n, s\u01b0\u01a1ng mu\u1ed1i)<\/li>\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu tuy\u1ec7t v\u1eddi \u0111\u1ed1i v\u1edbi axit sunfuric v\u00e0 axit clohydric<\/li>\n<li>R\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i v\u00e0 ngo\u00e0i kh\u01a1i<\/li>\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111i\u1ec3m v\u00e0 \u0103n m\u00f2n khe h\u1edf t\u1ed1t h\u01a1n<\/li>\n<\/ul>\n<h3>H\u01b0\u1edbng d\u1eabn n\u1ed9p \u0111\u01a1n<\/h3>\n<h4>Ch\u1ecdn 304 khi:<\/h4>\n<ul>\n<li>Trong nh\u00e0 ho\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft \u00f4n h\u00f2a<\/li>\n<li>Ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng<\/li>\n<li>Thi\u1ebft b\u1ecb d\u01b0\u1ee3c ph\u1ea9m<\/li>\n<li>\u1ee8ng d\u1ee5ng trong ki\u1ebfn tr\u00fac<\/li>\n<li>Chi ph\u00ed l\u00e0 y\u1ebfu t\u1ed1 \u0111\u01b0\u1ee3c quan t\u00e2m h\u00e0ng \u0111\u1ea7u (r\u1ebb h\u01a1n 15\u201320% so v\u1edbi lo\u1ea1i 316)<\/li>\n<\/ul>\n<h4>Ch\u1ecdn 316 Khi n\u00e0o:<\/h4>\n<ul>\n<li>M\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n ho\u1eb7c m\u00f4i tr\u01b0\u1eddng bi\u1ec3n<\/li>\n<li>Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd h\u00f3a h\u1ecdc b\u1eb1ng c\u00e1c h\u1ee3p ch\u1ea5t clorua<\/li>\n<li>D\u01b0\u1ee3c ph\u1ea9m v\u00e0 c\u00f4ng ngh\u1ec7 sinh h\u1ecdc (\u0111\u1ed9 tinh khi\u1ebft cao h\u01a1n)<\/li>\n<li>C\u00e1c gi\u00e0n khoan d\u1ea7u kh\u00ed ngo\u00e0i kh\u01a1i<\/li>\n<li>X\u1eed l\u00fd n\u01b0\u1edbc b\u1eb1ng clo<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n<\/ul>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd v\u1ec1 nhi\u1ec7t \u0111\u1ed9<\/h3>\n<ul>\n<li><strong>304:<\/strong> Ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 870\u00b0C (1600\u00b0F)<\/li>\n<li><strong>316:<\/strong> Ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 870\u00b0C (1600\u00b0F), \u0111\u1ed9 b\u1ec1n bi\u1ebfn d\u1ea1ng t\u1ed1t h\u01a1n<\/li>\n<li><strong>316L:<\/strong> Phi\u00ean b\u1ea3n \u00edt carbon d\u00e0nh cho h\u00e0n, ng\u0103n ng\u1eeba s\u1ef1 k\u1ebft t\u1ee7a cacbua<\/li>\n<\/ul>\n<h3>So s\u00e1nh chi ph\u00ed<\/h3>\n<p>Th\u00e9p kh\u00f4ng g\u1ec9 316 th\u01b0\u1eddng c\u00f3 gi\u00e1 cao h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 304 t\u1eeb 15 \u0111\u1ebfn 25% do h\u00e0m l\u01b0\u1ee3ng niken v\u00e0 molypden cao h\u01a1n. Tuy nhi\u00ean, tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n th\u01b0\u1eddng khi\u1ebfn kho\u1ea3n \u0111\u1ea7u t\u01b0 th\u00eam n\u00e0y tr\u1edf n\u00ean x\u1ee9ng \u0111\u00e1ng.<\/p>\n<h3>Ti\u00eau chu\u1ea9n ng\u00e0nh<\/h3>\n<ul>\n<li>ASTM A182: M\u1eb7t b\u00edch \u1ed1ng r\u00e8n (F304, F304L, F316, F316L)<\/li>\n<li>ASME B16.5: Ti\u00eau chu\u1ea9n k\u00edch th\u01b0\u1edbc<\/li>\n<li>NACE MR0175: Y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng axit<\/li>\n<\/ul>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 s\u1ebd \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u v\u00e0 gi\u1ea3m thi\u1ec3u chi ph\u00ed trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng.<\/p>\n<p><strong>WhatsApp:<\/strong>\u00a0+86-18658777855<br \/>\n<strong>Email:<\/strong>\u00a01007788887@qq.com<br \/>\n<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>304 vs 316 Stainless Steel Flanges Choosing between 304 and 316 stainless steel flanges is critical for ensuring long-term performance in corrosive environments. Understanding the key differences helps prevent premature failure and costly replacements. Chemical Composition Comparison Element 304 (SS) 316 (SS) Chromium 18-20% 16-18% Nickel 8-10.5% 10-14% Molybdenum None 2-3% Carbon Max 0.08% Max [&hellip;]<\/p>\n","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":[77,66,79,78],"class_list":["post-1040","post","type-post","status-publish","format-standard","hentry","category-blog","tag-carbon","tag-flange","tag-material","tag-stainless"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1040","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/comments?post=1040"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1040\/revisions"}],"predecessor-version":[{"id":1052,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1040\/revisions\/1052"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/media?parent=1040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/categories?post=1040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/tags?post=1040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}