{"id":6632,"date":"2025-04-24T11:43:48","date_gmt":"2025-04-24T03:43:48","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6632"},"modified":"2026-06-18T11:44:53","modified_gmt":"2026-06-18T03:44:53","slug":"astm-a193-b8-and-b8m-bolts-stainless-steel-strength-grades-explained","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/astm-a193-b8-and-b8m-bolts-stainless-steel-strength-grades-explained\/","title":{"rendered":"ASTM A193 B8 v\u00e0 B8M Bu l\u00f4ng: Gi\u1ea3i th\u00edch c\u00e1c c\u1ea5p \u0111\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9"},"content":{"rendered":"<p>ASTM A193 B8 v\u00e0 B8M bu l\u00f4ng th\u01b0\u1eddng g\u1eb7p trong c\u00e1c b\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c, van, m\u1eb7t b\u00edch, ph\u1ee5 ki\u1ec7n, h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 \u1edf nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c \u00e1p su\u1ea5t cao. Ng\u01b0\u1eddi mua th\u01b0\u1eddng m\u00f4 t\u1ea3 ch\u00fang \u0111\u01a1n gi\u1ea3n l\u00e0 \u201cbu l\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9\u201d, nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 ch\u01b0a \u0111\u1ee7 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p>B8 v\u00e0 B8M \u0111\u1ec1u l\u00e0 lo\u1ea1i kh\u00f4ng g\u1ec9 theo ASTM A193, nh\u01b0ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f9ng m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, c\u1ea5p \u0111\u1ed9 b\u1ec1n, \u0111ai \u1ed1c ph\u00f9 h\u1ee3p v\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What ASTM A193 Covers<\/h2>\n\n\n\n<p>ASTM A193 l\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1eadt li\u1ec7u bu l\u00f4ng d\u00e0nh cho \u1ed1c v\u00edt b\u1eb1ng th\u00e9p h\u1ee3p kim v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao, \u00e1p su\u1ea5t cao v\u00e0 m\u1ee5c \u0111\u00edch \u0111\u1eb7c bi\u1ec7t. N\u00f3 bao g\u1ed3m c\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 bu l\u00f4ng, \u0111inh t\u00e1n, thanh ren v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn bu l\u00f4ng c\u00f3 ren b\u00ean ngo\u00e0i kh\u00e1c.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua, ti\u00eau chu\u1ea9n n\u00e0y ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u1ebft n\u1ed1i m\u1eb7t b\u00edch<\/li>\n\n\n\n<li>\u0110\u01b0\u1eddng \u1ed1ng \u00e1p l\u1ef1c<\/li>\n\n\n\n<li>B\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t<\/li>\n\n\n\n<li>Van v\u00e0 m\u00e1y b\u01a1m<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb h\u00f3a d\u1ea7u<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb nh\u00e0 m\u00e1y \u0111i\u1ec7n<\/li>\n\n\n\n<li>C\u1ee5m c\u00f4ng nghi\u1ec7p nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n<\/ul>\n\n\n\n<p>Ng\u01b0\u1eddi mua so s\u00e1nh c\u00e1c l\u1ef1a ch\u1ecdn bu l\u00f4ng kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 xem x\u00e9t <a href=\"https:\/\/xzfastener.com\/vi\/fastener-material\/stainless-steel\/\">\u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/fastener-type\/bolts\/\">s\u1ea3n ph\u1ea9m bu l\u00f4ng<\/a> tr\u01b0\u1edbc khi chu\u1ea9n b\u1ecb RFQ.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B8 so v\u1edbi B8M: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 ch\u1ea5t li\u1ec7u<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM A193 B8<\/h3>\n\n\n\n<p>B8 th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi lo\u1ea1i 304 th\u00e9p kh\u00f4ng g\u1ec9. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n kh\u00f4ng g\u1ec9 nh\u01b0ng m\u1ee9c \u0111\u1ed9 ti\u1ebfp x\u00fac v\u1edbi clorua kh\u00f4ng nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM A193 B8M<\/h3>\n\n\n\n<p>B8M th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi lo\u1ea1i 316 th\u00e9p kh\u00f4ng g\u1ec9. Molypden \u0111\u01b0\u1ee3c th\u00eam v\u00e0o trong 316 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n clorua, l\u00e0m cho B8M ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p bi\u1ec3n, ven bi\u1ec3n, h\u00f3a ch\u1ea5t v\u00e0 \u0103n m\u00f2n h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>L\u1edbp<\/th><th>Lo\u1ea1i kh\u00f4ng g\u1ec9<\/th><th>T\u00ednh n\u0103ng ch\u00ednh<\/th><th>S\u1eed d\u1ee5ng chung<\/th><\/tr><\/thead><tbody><tr><td>ASTM A193 B8<\/td><td>304 \/ 304L lo\u1ea1i kh\u00f4ng g\u1ec9<\/td><td>Ch\u1ed1ng \u0103n m\u00f2n chung<\/td><td>Van, m\u1eb7t b\u00edch, thi\u1ebft b\u1ecb trong m\u00f4i tr\u01b0\u1eddng \u00f4n h\u00f2a<\/td><\/tr><tr><td>ASTM A193 B8M<\/td><td>316 \/ 316L lo\u1ea1i kh\u00f4ng g\u1ec9<\/td><td>Kh\u00e1ng clorua v\u00e0 h\u00f3a ch\u1ea5t t\u1ed1t h\u01a1n<\/td><td>D\u1ecbch v\u1ee5 h\u00e0ng h\u1ea3i, h\u00f3a ch\u1ea5t, ven bi\u1ec3n, h\u00f3a d\u1ea7u<\/td><\/tr><tr><td>B8 Class 2<\/td><td>Strain-hardened 304 type<\/td><td>C\u01b0\u1eddng \u0111\u1ed9 cao h\u01a1n lo\u1ea1i 1<\/td><td>Bu l\u00f4ng kh\u00f4ng g\u1ec9 ch\u1ecbu t\u1ea3i cao h\u01a1n<\/td><\/tr><tr><td>B8M Class 2<\/td><td>Strain-hardened 316 type<\/td><td>\u0110\u1ed9 b\u1ec1n cao h\u01a1n c\u1ed9ng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n<\/td><td>Y\u00eau c\u1ea7u m\u1ed1i n\u1ed1i bu l\u00f4ng b\u1ecb \u0103n m\u00f2n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Lo\u1ea1i ch\u00ednh x\u00e1c ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ecdn theo \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5, kh\u00f4ng ch\u1ec9 theo gi\u00e1 c\u1ea3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Class 1 vs Class 2 Strength<\/h2>\n\n\n\n<p>M\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 g\u1ecdi m\u00f3n \u201cB8\u201d ho\u1eb7c \u201cB8M\u201d m\u00e0 kh\u00f4ng n\u00eau r\u00f5 l\u1edbp. ASTM A193 c\u00e1c lo\u1ea1i kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 b\u1ec1n kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Class 1<\/h3>\n\n\n\n<p>Lo\u1ea1i 1 \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng dung d\u1ecbch cacbua. N\u00f3 cung c\u1ea5p \u0111\u1ed9 b\u1ec1n bu l\u00f4ng kh\u00f4ng g\u1ec9 ti\u00eau chu\u1ea9n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi hi\u1ec7u su\u1ea5t \u0103n m\u00f2n l\u00e0 m\u1ed1i quan t\u00e2m ch\u00ednh v\u00e0 t\u1ea3i tr\u1ecdng c\u01a1 h\u1ecdc c\u1ea7n thi\u1ebft l\u00e0 v\u1eeba ph\u1ea3i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Class 2<\/h3>\n\n\n\n<p>Lo\u1ea1i 2 l\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng l\u1ea1i sau khi x\u1eed l\u00fd b\u1eb1ng dung d\u1ecbch. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng s\u1ee9c m\u1ea1nh. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi m\u1ed1i n\u1ed1i c\u1ea7n \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 hi\u1ec7u su\u1ea5t ch\u1ea3y cao h\u01a1n Lo\u1ea1i 1 c\u00f3 th\u1ec3 cung c\u1ea5p.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>l\u1edbp h\u1ecdc<\/th><th>L\u1ed9 tr\u00ecnh x\u1eed l\u00fd<\/th><th>C\u1ea5p \u0111\u1ed9 s\u1ee9c m\u1ea1nh<\/th><th>M\u1ed1i quan t\u00e2m c\u1ee7a ng\u01b0\u1eddi mua<\/th><\/tr><\/thead><tbody><tr><td>Class 1<\/td><td>Gi\u1ea3i ph\u00e1p x\u1eed l\u00fd<\/td><td>S\u1ee9c m\u1ea1nh ti\u00eau chu\u1ea9n<\/td><td>X\u00e1c nh\u1eadn m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u00e0 nhi\u1ec7t \u0111\u1ed9<\/td><\/tr><tr><td>Class 2<\/td><td>Dung d\u1ecbch \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 l\u00e0m c\u1ee9ng l\u1ea1i<\/td><td>S\u1ee9c m\u1ea1nh cao h\u01a1n<\/td><td>X\u00e1c nh\u1eadn gi\u1edbi h\u1ea1n k\u00edch th\u01b0\u1edbc, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 kh\u1edbp \u0111ai \u1ed1c<\/td><\/tr><tr><td>Lo\u1ea1i 2B, n\u1ebfu c\u00f3<\/td><td>D\u1ef1 \u00e1n \u0111\u1eb7c bi\u1ec7t ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n<\/td><td>Y\u00eau c\u1ea7u trung gian ho\u1eb7c c\u1ee5 th\u1ec3<\/td><td>Ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra theo ti\u00eau chu\u1ea9n ch\u00ednh x\u00e1c v\u00e0 \u0111\u01a1n \u0111\u1eb7t h\u00e0ng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea3i cao h\u01a1n, ng\u01b0\u1eddi mua n\u00ean xem x\u00e9t <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a> v\u00e0 x\u00e1c nh\u1eadn c\u1ea3 s\u1ee9c m\u1ea1nh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i h\u1ea1t v\u00e0 v\u00f2ng \u0111\u1ec7m ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<p>ASTM A193 bu l\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi \u0111ai \u1ed1c. \u0110\u1ed1i v\u1edbi bu l\u00f4ng B8 v\u00e0 B8M, c\u00e1c lo\u1ea1i \u0111ai \u1ed1c ph\u1ed5 bi\u1ebfn l\u00e0 ASTM A194 C\u1ea5p 8 v\u00e0 C\u1ea5p 8M, t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i bu l\u00f4ng v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n\n\n\n<p>M\u1ed9t bu l\u00f4ng \u0111\u00fang v\u1edbi \u0111ai \u1ed1c sai c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t c\u1ee5m l\u1eafp r\u00e1p y\u1ebfu. V\u00f2ng \u0111\u1ec7m c\u0169ng c\u00f3 vai tr\u00f2 quan tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t khi c\u00f3 li\u00ean quan \u0111\u1ebfn t\u1ea3i m\u1eb7t b\u00edch, n\u00e9n mi\u1ebfng \u0111\u1ec7m ho\u1eb7c b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n<p>Ng\u01b0\u1eddi mua n\u00ean x\u00e1c nh\u1eadn:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>L\u1edbp v\u00e0 l\u1edbp bu l\u00f4ng<\/li>\n\n\n\n<li>L\u1edbp h\u1ea1t<\/li>\n\n\n\n<li>V\u1eadt li\u1ec7u v\u00f2ng \u0111\u1ec7m v\u00e0 \u0111\u1ed9 c\u1ee9ng<\/li>\n\n\n\n<li>Cao \u0111\u1ed9 ren<\/li>\n\n\n\n<li>L\u1edbp ph\u1ee7 ho\u1eb7c t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>M\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0103n m\u00f2n<\/li>\n\n\n\n<li>B\u00e1o c\u00e1o th\u1eed nghi\u1ec7m c\u1ea7n thi\u1ebft<\/li>\n<\/ol>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 l\u1eafp r\u00e1p ho\u00e0n ch\u1ec9nh, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem l\u1ea1i to\u00e0n b\u1ed9 <a href=\"https:\/\/xzfastener.com\/vi\/home\/products\/\">s\u1ea3n ph\u1ea9m chi ti\u1ebft si\u1ebft ch\u1eb7t<\/a> ph\u1ea1m vi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ee7a ng\u01b0\u1eddi mua<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u00f3 hi\u1ec3u v\u1edbi \u201cB\u1ea5t k\u1ef3 316 Bolt\u201d<\/h3>\n\n\n\n<p>B8M kh\u00f4ng ch\u1ec9 l\u00e0 t\u00ean g\u1ecdi th\u00f4ng th\u01b0\u1eddng c\u1ee7a 316 th\u00e9p kh\u00f4ng g\u1ec9. N\u00f3 ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 h\u00f3a h\u1ecdc, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, nh\u00e3n hi\u1ec7u v\u00e0 t\u00e0i li\u1ec7u. (ASTM A193)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ecf qua l\u1edbp h\u1ecdc<\/h3>\n\n\n\n<p>B8 L\u1edbp 1 v\u00e0 B8 L\u1edbp 2 kh\u00f4ng c\u00f3 s\u1ee9c m\u1ea1nh nh\u01b0 nhau. \u0110i\u1ec1u t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u00e1p d\u1ee5ng cho B8M. Lu\u00f4n ghi r\u00f5 l\u1edbp trong RFQ.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng B8 \u1edf nh\u1eefng n\u01a1i c\u1ea7n thi\u1ebft<\/h3>\n\n\n\n<p>Khi ti\u1ebfp x\u00fac v\u1edbi clorua, ven bi\u1ec3n, bi\u1ec3n ho\u1eb7c h\u00f3a ch\u1ea5t, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 kh\u00f4ng cung c\u1ea5p \u0111\u1ee7 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. B8M th\u01b0\u1eddng l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn an to\u00e0n h\u01a1n. (304)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u00ean ch\u1ee7 \u0111\u1ec1 \u0111i lang thang<\/h3>\n\n\n\n<p>S\u1ee3i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 b\u1ecb m\u00f2n trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t. C\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i l\u00e0m s\u1ea1ch ren, \u0111ai \u1ed1c ch\u00ednh x\u00e1c, si\u1ebft ch\u1eb7t c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 th\u1ef1c h\u00e0nh ch\u1ed1ng b\u00f3 c\u1ee9ng th\u00edch h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">X\u1eed l\u00fd l\u1edbp ph\u1ee7 nh\u01b0 m\u1ed9t ti\u1ec7n \u00edch b\u1ed5 sung \u0111\u01a1n gi\u1ea3n<\/h3>\n\n\n\n<p>Bu l\u00f4ng kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c cung c\u1ea5p \u1edf d\u1ea1ng tr\u01a1n, th\u1ee5 \u0111\u1ed9ng ho\u1eb7c \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch. N\u1ebfu c\u1ea7n l\u1edbp ph\u1ee7 \u0111\u1eb7c bi\u1ec7t, h\u00e3y xem l\u1ea1i <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a> v\u00e0 x\u00e1c nh\u1eadn s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a ren v\u00e0 h\u00e0nh vi m\u00f4-men xo\u1eafn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Danh s\u00e1ch ki\u1ec3m tra cho ASTM A193 B8 v\u00e0 B8M Bu l\u00f4ng<\/h2>\n\n\n\n<p>M\u1ed9t RFQ r\u00f5 r\u00e0ng n\u00ean bao g\u1ed3m:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>RFQ M\u1ee5c<\/th><th>Cung c\u1ea5p nh\u1eefng g\u00ec<\/th><\/tr><\/thead><tbody><tr><td>Ti\u00eau chu\u1ea9n<\/td><td>ASTM A193 \/ A193M<\/td><\/tr><tr><td>L\u1edbp<\/td><td>B8 or B8M<\/td><\/tr><tr><td>l\u1edbp h\u1ecdc<\/td><td>L\u1edbp 1, L\u1edbp 2, ho\u1eb7c l\u1edbp do d\u1ef1 \u00e1n ch\u1ec9 \u0111\u1ecbnh<\/td><\/tr><tr><td>K\u00edch th\u01b0\u1edbc<\/td><td>\u0110\u01b0\u1eddng k\u00ednh, chi\u1ec1u d\u00e0i, b\u01b0\u1edbc ren, chi\u1ec1u d\u00e0i ren<\/td><\/tr><tr><td>Lo\u1ea1i s\u1ea3n ph\u1ea9m<\/td><td>Bu l\u00f4ng, bu l\u00f4ng \u0111inh t\u00e1n, thanh ren ho\u1eb7c b\u1ed9 ph\u1eadn \u0111\u1eb7c bi\u1ec7t<\/td><\/tr><tr><td>Y\u00eau c\u1ea7u v\u1ec1 \u0111ai \u1ed1c<\/td><td>ASTM A194 C\u1ea5p 8, 8M, ho\u1eb7c y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n<\/td><\/tr><tr><td>Y\u00eau c\u1ea7u v\u00f2ng \u0111\u1ec7m<\/td><td>Ch\u1ea5t li\u1ec7u, k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 ho\u00e0n thi\u1ec7n<\/td><\/tr><tr><td>\u0110i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5<\/td><td>Nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t, ti\u1ebfp x\u00fac v\u1edbi \u0103n m\u00f2n<\/td><\/tr><tr><td>Documents<\/td><td>MTC, b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m c\u01a1 kh\u00ed, PMI n\u1ebfu \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u<\/td><\/tr><tr><td>\u0110\u00f3ng g\u00f3i<\/td><td>Nh\u00e3n l\u00f4, s\u1ed1 nhi\u1ec7t, truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi chi\u1ec1u d\u00e0i kh\u00f4ng chu\u1ea9n, ren \u0111\u1eb7c bi\u1ec7t ho\u1eb7c bu l\u00f4ng kh\u00f4ng g\u1ec9 d\u1ef1a tr\u00ean b\u1ea3n v\u1ebd, h\u00e3y s\u1eed d\u1ee5ng <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/custom-non-standard-fasteners\/\">\u1ed1c v\u00edt phi ti\u00eau chu\u1ea9n t\u00f9y ch\u1ec9nh<\/a> v\u00e0 cung c\u1ea5p b\u1ea3n v\u1ebd ho\u1eb7c m\u1eabu \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1eddi khuy\u00ean cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>ASTM A193 B8 v\u00e0 B8M n\u00ean \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo v\u1eadt li\u1ec7u, h\u1ea1ng, m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng v\u00e0 y\u00eau c\u1ea7u l\u1eafp r\u00e1p. B8 l\u00e0 lo\u1ea1i bu l\u00f4ng kh\u00f4ng g\u1ec9 lo\u1ea1i 304. B8M l\u00e0 lo\u1ea1i bu l\u00f4ng kh\u00f4ng g\u1ec9 lo\u1ea1i 316 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng clorua ho\u1eb7c h\u00f3a ch\u1ea5t.<\/p>\n\n\n\n<p>\u0110\u1ec3 mua h\u00e0ng \u0111\u00e1ng tin c\u1eady, \u0111\u1eebng ch\u1ec9 vi\u1ebft \u201cbu l\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9\u201d. Ch\u1ec9 \u0111\u1ecbnh ASTM A193, c\u1ea5p, lo\u1ea1i, k\u00edch th\u01b0\u1edbc, ren, \u0111ai \u1ed1c ph\u00f9 h\u1ee3p, v\u00f2ng \u0111\u1ec7m, t\u00e0i li\u1ec7u v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c. \u0110\u00f3 l\u00e0 c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 giao h\u00e0ng sai c\u1ea5p v\u00e0 l\u1eafp r\u00e1p t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM A193 B8 and B8M bolts are common in pressure vessels, valves, flanges, fittings, piping systems, and high-temperature or high-pressure service. Buyers often describe them simply as \u201cstainless steel bolts,\u201d but that is not precise enough. B8 and B8M are both stainless grades under ASTM A193, yet they are not the same material. Their corrosion [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[504],"class_list":["post-6632","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-strength-grades-mechanical-properties"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=6632"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6632\/revisions"}],"predecessor-version":[{"id":6633,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6632\/revisions\/6633"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=6632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=6632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=6632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}