{"id":7457,"date":"2022-12-08T06:42:35","date_gmt":"2022-12-07T22:42:35","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7457"},"modified":"2026-06-24T06:44:08","modified_gmt":"2026-06-23T22:44:08","slug":"astm-a193-b7-fasteners-material-properties-and-applications","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/astm-a193-b7-fasteners-material-properties-and-applications\/","title":{"rendered":"ASTM A193 B7 Ch\u1ed1t: T\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p>ASTM A193 B7 \u1ed1c v\u00edt l\u00e0 m\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p l\u1ef1c, k\u1ebft n\u1ed1i m\u1eb7t b\u00edch, nh\u00e0 m\u00e1y h\u00f3a d\u1ea7u v\u00e0 m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p nhi\u1ec7t \u0111\u1ed9 cao. Trong th\u1ef1c h\u00e0nh k\u1ef9 thu\u1eadt th\u1ef1c t\u1ebf, ch\u00fang hi\u1ebfm khi \u0111\u01b0\u1ee3c ch\u1ecdn ch\u1ec9 v\u00ec s\u1ee9c m\u1ea1nh c\u1ee7a ch\u00fang. Ch\u00fang \u0111\u01b0\u1ee3c ch\u1ecdn v\u00ec ch\u00fang cung c\u1ea5p s\u1ef1 c\u00e2n b\u1eb1ng \u0111\u00e1ng tin c\u1eady v\u1ec1 hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5 \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, nh\u1eefng hi\u1ec3u l\u1ea7m v\u1ec1 \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u v\u00e0 gi\u1edbi h\u1ea1n \u1ee9ng d\u1ee5ng th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn vi\u1ec7c thay th\u1ebf kh\u00f4ng ch\u00ednh x\u00e1c, h\u1ecfng h\u00f3c s\u1edbm ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao v\u00e0 \u1ed1c v\u00edt c\u00f4ng nghi\u1ec7p, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem x\u00e9t XZ Fastener's <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/products-tag\/threaded-rod\/\">thanh ren<\/a> trang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. ASTM A193 B7 l\u00e0 g\u00ec?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Lo\u1ea1i chi ti\u1ebft si\u1ebft ch\u1eb7t b\u1eb1ng th\u00e9p h\u1ee3p kim c\u01b0\u1eddng \u0111\u1ed9 cao<\/h3>\n\n\n\n<p>ASTM A193 B7 l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a th\u00e9p h\u1ee3p kim crom-molypden \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho d\u1ecbch v\u1ee5 \u00e1p su\u1ea5t cao v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c cung c\u1ea5p d\u01b0\u1edbi d\u1ea1ng \u0111inh t\u00e1n, bu l\u00f4ng v\u00e0 thanh ren \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi \u0111ai \u1ed1c c\u1ea5p 2H. (ASTM A194)<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>t\u00ednh n\u0103ng<\/th><th>ASTM A193 B7<\/th><\/tr><\/thead><tbody><tr><td>Lo\u1ea1i v\u1eadt li\u1ec7u<\/td><td>Th\u00e9p h\u1ee3p kim crom-molypden<\/td><\/tr><tr><td>M\u1eabu s\u1ea3n ph\u1ea9m<\/td><td>Bu l\u00f4ng \u0111inh, bu l\u00f4ng, thanh ren<\/td><\/tr><tr><td>C\u1eb7p \u0111\u00f4i \u0111i\u1ec3n h\u00ecnh<\/td><td>ASTM A194 2H \u0111ai \u1ed1c<\/td><\/tr><tr><td>L\u1ea5y n\u00e9t ti\u00eau chu\u1ea9n<\/td><td>D\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao<\/td><\/tr><tr><td>M\u1ee9c \u0111\u1ed9 s\u1ee9c m\u1ea1nh<\/td><td>\u0110\u1ed9 b\u1ec1n k\u00e9o v\u00e0 n\u0103ng su\u1ea5t cao<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>B7 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh kh\u00f4ng ch\u1ec9 b\u1edfi h\u00f3a h\u1ecdc m\u00e0 c\u00f2n b\u1edfi c\u00e1c y\u00eau c\u1ea7u v\u1ec1 x\u1eed l\u00fd nhi\u1ec7t v\u00e0 hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. T\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u c\u1ee7a A193 B7<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ee9c m\u1ea1nh \u0111\u1ebfn t\u1eeb x\u1eed l\u00fd nhi\u1ec7t c\u00f3 ki\u1ec3m so\u00e1t<\/h3>\n\n\n\n<p>Hi\u1ec7u su\u1ea5t c\u1ee7a \u1ed1c v\u00edt ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o qu\u00e1 tr\u00ecnh t\u00f4i v\u00e0 t\u00f4i. \u0110i\u1ec1u n\u00e0y mang l\u1ea1i cho v\u1eadt li\u1ec7u \u0111\u1ed9 b\u1ec1n k\u00e9o cao trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 d\u1ebbo \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Property<\/th><th>\u0110\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t<\/th><\/tr><\/thead><tbody><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>Cao v\u00e0 \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi t\u1ea3i<\/td><\/tr><tr><td>S\u1ee9c m\u1ea1nh n\u0103ng su\u1ea5t<\/td><td>Ki\u1ec3m so\u00e1t cho c\u00e1c \u1ee9ng d\u1ee5ng \u00e1p l\u1ef1c<\/td><\/tr><tr><td>Hardness<\/td><td>\u0110\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi ph\u1ea1m vi x\u1eed l\u00fd nhi\u1ec7t<\/td><\/tr><tr><td>Ductility<\/td><td>C\u00e2n b\u1eb1ng d\u00f9ng trong c\u00f4ng nghi\u1ec7p<\/td><\/tr><tr><td>Ch\u1ed1ng m\u1ecfi<\/td><td>Th\u00edch h\u1ee3p cho c\u00e1c h\u1ec7 th\u1ed1ng t\u1ea3i tu\u1ea7n ho\u00e0n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Trong th\u1ef1c t\u1ebf, x\u1eed l\u00fd nhi\u1ec7t nh\u1ea5t qu\u00e1n quan tr\u1ecdng h\u01a1n ch\u1ec9 ri\u00eang h\u00f3a h\u1ecdc danh ngh\u0129a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u00edch h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao<\/h3>\n\n\n\n<p>ASTM A193 B7 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 t\u1eeb trung b\u00ecnh \u0111\u1ebfn cao nh\u01b0 nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u, nh\u00e0 m\u00e1y \u0111i\u1ec7n v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb x\u1eed l\u00fd h\u00f3a ch\u1ea5t.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Condition<\/th><th>H\u00e0nh vi \u1ee9ng d\u1ee5ng<\/th><\/tr><\/thead><tbody><tr><td>D\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 cao<\/td><td>Duy tr\u00ec s\u1ee9c m\u1ea1nh d\u01b0\u1edbi t\u1ea3i nhi\u1ec7t<\/td><\/tr><tr><td>Nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i<\/td><td>Hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc \u1ed5n \u0111\u1ecbnh<\/td><\/tr><tr><td>D\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/td><td>C\u00f3 th\u1ec3 y\u00eau c\u1ea7u x\u00e1c minh t\u00e1c \u0111\u1ed9ng<\/td><\/tr><tr><td>\u0110i xe \u0111\u1ea1p nhi\u1ec7t<\/td><td>Y\u00eau c\u1ea7u xem x\u00e9t thi\u1ebft k\u1ebf chung<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 hi\u1ec7u su\u1ea5t kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o bu l\u00f4ng m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf m\u1eb7t b\u00edch, lo\u1ea1i \u0111\u1ec7m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u1ee8ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng k\u1ebft c\u1ea5u v\u00e0 \u00e1p su\u1ea5t t\u1edbi h\u1ea1n<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Khu v\u1ef1c \u1ee9ng d\u1ee5ng<\/th><th>L\u00fd do s\u1eed d\u1ee5ng<\/th><\/tr><\/thead><tbody><tr><td>M\u1eb7t b\u00edch \u1ed1ng<\/td><td>\u0110\u1ed9 tin c\u1eady t\u1ea3i tr\u01b0\u1edbc v\u00e0 ni\u00eam phong cao<\/td><\/tr><tr><td>B\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c<\/td><td>Duy tr\u00ec t\u1ea3i tr\u1ecdng an to\u00e0n<\/td><\/tr><tr><td>Van v\u00e0 m\u00e1y b\u01a1m<\/td><td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc d\u01b0\u1edbi \u00e1p su\u1ea5t<\/td><\/tr><tr><td>Nh\u00e0 m\u00e1y h\u00f3a d\u1ea7u<\/td><td>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 c\u0103ng th\u1eb3ng<\/td><\/tr><tr><td>H\u1ec7 th\u1ed1ng ph\u00e1t \u0111i\u1ec7n<\/td><td>D\u1ecbch v\u1ee5 \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng chi ti\u1ebft si\u1ebft ch\u1eb7t th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1eafp r\u00e1p c\u00f4ng nghi\u1ec7p, ng\u01b0\u1eddi mua c\u0169ng c\u00f3 th\u1ec3 xem x\u00e9t XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/standard-fasteners\/\">\u1ed1c v\u00edt ti\u00eau chu\u1ea9n<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. L\u1edbp ph\u1ee7 v\u00e0 b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u00e9p h\u1ee3p kim y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t<\/h3>\n\n\n\n<p>M\u1eb7c d\u00f9 B7 c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao nh\u01b0ng b\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. X\u1eed l\u00fd b\u1ec1 m\u1eb7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u t\u00f9y thu\u1ed9c v\u00e0o m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Lo\u1ea1i l\u1edbp ph\u1ee7<\/th><th>S\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng<\/th><\/tr><\/thead><tbody><tr><td>Oxit \u0111en<\/td><td>M\u00f4i tr\u01b0\u1eddng trong nh\u00e0 ho\u1eb7c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/td><\/tr><tr><td>M\u1ea1 k\u1ebdm<\/td><td>B\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n c\u01a1 b\u1ea3n<\/td><\/tr><tr><td>M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/td><td>\u1ee8ng d\u1ee5ng k\u1ebft c\u1ea5u ngo\u00e0i tr\u1eddi<\/td><\/tr><tr><td>L\u1edbp ph\u1ee7 v\u1ea3y k\u1ebdm<\/td><td>Ch\u1ed1ng \u0103n m\u00f2n hi\u1ec7u su\u1ea5t cao<\/td><\/tr><tr><td>PTFE l\u1edbp ph\u1ee7<\/td><td>Ma s\u00e1t th\u1ea5p v\u00e0 kh\u00e1ng h\u00f3a ch\u1ea5t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng ph\u1ee7, xem XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/fastener-coating\/hot-dip-galvanizing\/\">m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/a> trang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6. B7 Bu l\u00f4ng \u0111inh trong h\u1ec7 th\u1ed1ng m\u1eb7t b\u00edch<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho c\u00e1c m\u1ed1i n\u1ed1i ch\u1ecbu \u00e1p l\u1ef1c cao<\/h3>\n\n\n\n<p>Bu l\u00f4ng \u0111inh \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb A193 B7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u1ee5m m\u1eb7t b\u00edch v\u00ec ch\u00fang mang l\u1ea1i s\u1ef1 ph\u00e2n b\u1ed5 \u1ee9ng su\u1ea5t \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 b\u1ea3o tr\u00ec d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>t\u00ednh n\u0103ng<\/th><th>L\u1ee3i \u00edch trong h\u1ec7 th\u1ed1ng m\u1eb7t b\u00edch<\/th><\/tr><\/thead><tbody><tr><td>Lu\u1ed3ng hai \u0111\u1ea7u<\/td><td>L\u1eafp r\u00e1p v\u00e0 g\u1ee1 b\u1ecf d\u1ec5 d\u00e0ng h\u01a1n<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng t\u1ea3i tr\u01b0\u1edbc cao<\/td><td>C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t ni\u00eam phong<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ti\u00eau chu\u1ea9n<\/td><td>Ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1c lo\u1ea1i h\u1ea1t (ASTM A194)<\/td><\/tr><tr><td>B\u1ea3o tr\u00ec linh ho\u1ea1t<\/td><td>Thay th\u1ebf d\u1ec5 d\u00e0ng h\u01a1n t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng c\u00f3 lu\u1ed3ng, h\u00e3y xem XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-tag\/threaded-rod\/\">thanh ren<\/a> th\u1ec3 lo\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7. Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ec9 c\u1ea5p \u0111\u1ed9 s\u1ee9c m\u1ea1nh l\u00e0 kh\u00f4ng \u0111\u1ee7<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Misunderstanding<\/th><th>Th\u1ef1c t\u1ebf<\/th><\/tr><\/thead><tbody><tr><td>B7 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/td><td>N\u00f3 y\u00eau c\u1ea7u l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7<\/td><\/tr><tr><td>T\u1ea5t c\u1ea3 c\u00e1c bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau<\/td><td>\u1ee8ng d\u1ee5ng v\u00e0 v\u1ea5n \u0111\u1ec1 nhi\u1ec7t \u0111\u1ed9<\/td><\/tr><tr><td>M\u00f4-men xo\u1eafn b\u1eb1ng t\u1ea3i tr\u01b0\u1edbc an to\u00e0n<\/td><td>\u0110i\u1ec1u ki\u1ec7n ma s\u00e1t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c<\/td><\/tr><tr><td>Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 thay th\u1ebf tr\u1ef1c ti\u1ebfp<\/td><td>S\u1ee9c m\u1ea1nh v\u00e0 h\u00e0nh vi nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Thay th\u1ebf kh\u00f4ng ch\u00ednh x\u00e1c l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ra s\u1ef1 c\u1ed1 tr\u00ean hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">8. C\u00e2n nh\u1eafc c\u00e0i \u0111\u1eb7t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Si\u1ebft ch\u1eb7t \u0111\u00fang c\u00e1ch l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho hi\u1ec7u su\u1ea5t<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Y\u1ebfu t\u1ed1<\/th><th>t\u00e1c \u0111\u1ed9ng<\/th><\/tr><\/thead><tbody><tr><td>Ki\u1ec3m so\u00e1t m\u00f4-men xo\u1eafn<\/td><td>\u0110\u1ea3m b\u1ea3o t\u1ea3i tr\u01b0\u1edbc th\u00edch h\u1ee3p<\/td><\/tr><tr><td>T\u00ecnh tr\u1ea1ng b\u00f4i tr\u01a1n<\/td><td>Thay \u0111\u1ed5i h\u00e0nh vi ma s\u00e1t<\/td><\/tr><tr><td>T\u00ecnh tr\u1ea1ng ch\u1ee7 \u0111\u1ec1<\/td><td>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn ph\u00e2n ph\u1ed1i t\u1ea3i<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111ai \u1ed1c<\/td><td>Quan tr\u1ecdng \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng<\/td><\/tr><tr><td>L\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t<\/td><td>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn gi\u00e1 tr\u1ecb th\u1eaft ch\u1eb7t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ng\u01b0\u1eddi mua c\u0169ng c\u00f3 th\u1ec3 xem x\u00e9t XZ Fastener's <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Danh s\u00e1ch ki\u1ec3m tra d\u00e0nh cho ng\u01b0\u1eddi mua<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">X\u00e1c \u0111\u1ecbnh r\u00f5 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/h3>\n\n\n\n<p>M\u1ed9t RFQ ho\u00e0n ch\u1ec9nh cho c\u00e1c chi ti\u1ebft si\u1ebft ch\u1eb7t ASTM A193 B7 n\u00ean bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lo\u1ea1i chi ti\u1ebft si\u1ebft ch\u1eb7t (bu l\u00f4ng \u0111inh t\u00e1n, bu l\u00f4ng ho\u1eb7c thanh ren).<\/li>\n\n\n\n<li>Th\u00f4ng s\u1ed1 \u0111\u01b0\u1eddng k\u00ednh, chi\u1ec1u d\u00e0i v\u00e0 ren.<\/li>\n\n\n\n<li>Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u (ASTM A193 B7).<\/li>\n\n\n\n<li>Th\u00f4ng s\u1ed1 \u0111ai \u1ed1c (ASTM A194 C\u1ea5p 2H).<\/li>\n\n\n\n<li>\u0110i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 l\u1edbp ph\u1ee7 ho\u1eb7c ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 m\u00f4-men xo\u1eafn ho\u1eb7c t\u1ea3i tr\u01b0\u1edbc n\u1ebfu c\u00f3.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u ki\u1ec3m tra v\u00e0 ch\u1ee9ng nh\u1eadn.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u truy xu\u1ea5t ngu\u1ed3n g\u1ed1c h\u00e0ng lo\u1ea1t.<\/li>\n\n\n\n<li>Chi ti\u1ebft \u1ee9ng d\u1ee5ng ho\u1eb7c b\u1ea3n v\u1ebd.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng \u1ed1c v\u00edt ho\u1eb7c m\u1eb7t b\u00edch d\u1ef1a tr\u00ean d\u1ef1 \u00e1n, h\u00e3y g\u1eedi y\u00eau c\u1ea7u qua <a href=\"https:\/\/xzfastener.com\/vi\/home\/contact-us\/\">XZ Fastener Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>ASTM A193 B7 \u1ed1c v\u00edt \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao, \u00e1p su\u1ea5t cao v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao. Hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ch\u00ednh x\u00e1c, x\u1eed l\u00fd nhi\u1ec7t, b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n<p>Ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 \u1ed1c v\u00edt c\u00f3 m\u1ee5c \u0111\u00edch chung v\u00e0 ph\u1ea3i lu\u00f4n \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng thay v\u00ec ch\u1ec9 d\u1ef1a tr\u00ean h\u00ecnh th\u1ee9c b\u00ean ngo\u00e0i ho\u1eb7c \u0111\u1ed9 b\u1ec1n. Khi \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch, c\u00e1c \u1ed1c v\u00edt s\u1ebd mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 l\u00e2u d\u00e0i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p quan tr\u1ecdng nh\u01b0 h\u1ec7 th\u1ed1ng h\u00f3a d\u1ea7u, n\u0103ng l\u01b0\u1ee3ng v\u00e0 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM A193 B7 fasteners are one of the most widely used high-strength bolting solutions in pressure systems, flanged connections, petrochemical plants, and high-temperature industrial environments. In real engineering practice, they are rarely selected just for their strength. They are chosen because they provide a reliable balance of mechanical performance, temperature resistance, and long-term stability in [&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":[487],"class_list":["post-7457","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-fastener-materials"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7457","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=7457"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7457\/revisions"}],"predecessor-version":[{"id":7458,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7457\/revisions\/7458"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=7457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=7457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=7457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}