{"id":656,"date":"2026-08-17T09:20:19","date_gmt":"2026-08-17T02:20:19","guid":{"rendered":"https:\/\/nhipoto.vn\/?p=656"},"modified":"2026-08-17T09:20:20","modified_gmt":"2026-08-17T02:20:20","slug":"nhip-o-to-duoc-lam-tu-thep-gi-vi-sao-nhip-co-do-dan-hoi-cao","status":"publish","type":"post","link":"https:\/\/nhipoto.vn\/index.php\/2026\/08\/17\/nhip-o-to-duoc-lam-tu-thep-gi-vi-sao-nhip-co-do-dan-hoi-cao\/","title":{"rendered":"Nh\u00edp \u00f4 t\u00f4 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u00e9p g\u00ec? V\u00ec sao nh\u00edp c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i cao?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Nh\u00ecn b\u00ean ngo\u00e0i, m\u1ed9t b\u1ed9 nh\u00edp ch\u1ec9 l\u00e0 nh\u1eefng l\u00e1 th\u00e9p \u0111\u01b0\u1ee3c x\u1ebfp ch\u1ed3ng l\u00ean nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng \u0111\u1ec3 c\u00f3 th\u1ec3 <strong>ch\u1ecbu t\u1ea3i l\u1edbn, li\u00ean t\u1ee5c u\u1ed1n \u0111\u00e0n h\u1ed3i v\u00e0 l\u00e0m vi\u1ec7c trong th\u1eddi gian d\u00e0i<\/strong>, l\u00e1 nh\u00edp ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb nh\u1eefng lo\u1ea1i <strong>th\u00e9p l\u00f2 xo chuy\u00ean d\u1ee5ng<\/strong> v\u00e0 tr\u1ea3i qua quy tr\u00ecnh nhi\u1ec7t luy\u1ec7n ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady nh\u00edp \u00f4 t\u00f4 th\u01b0\u1eddng s\u1eed d\u1ee5ng nh\u1eefng lo\u1ea1i th\u00e9p n\u00e0o?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd29 1. Nh\u00edp \u00f4 t\u00f4 kh\u00f4ng ch\u1ec9 d\u00f9ng m\u1ed9t m\u00e1c th\u00e9p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 m\u1ed9t m\u00e1c th\u00e9p duy nh\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i nh\u00edp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f9y thi\u1ebft k\u1ebf, t\u1ea3i tr\u1ecdng, ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t, l\u00e1 nh\u00edp c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nh\u1eefng lo\u1ea1i th\u00e9p l\u00f2 xo kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 m\u00e1c th\u01b0\u1eddng g\u1eb7p trong v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o l\u00e1 nh\u00edp g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>60Si2Mn<\/strong><\/li>\n\n\n\n<li><strong>SUP9 \/ SUP9A<\/strong><\/li>\n\n\n\n<li><strong>SUP10<\/strong><\/li>\n\n\n\n<li><strong>51CrV4<\/strong><\/li>\n\n\n\n<li><strong>50CrV4<\/strong><\/li>\n\n\n\n<li><strong>5160<\/strong><\/li>\n\n\n\n<li><strong>6150<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c catalogue s\u1ea3n ph\u1ea9m l\u00e1 nh\u00edp th\u1ef1c t\u1ebf c\u0169ng ghi nh\u1eadn nh\u1eefng v\u1eadt li\u1ec7u nh\u01b0 <strong>60Si2Mn, 51CrV4, 50CrVA&#8230;<\/strong> cho c\u00e1c b\u1ed9 nh\u00edp \u00f4 t\u00f4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c bi\u1ec7t, Mitsubishi Steel \u2013 m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p v\u00e0 s\u1ea3n ph\u1ea9m l\u00f2 xo c\u1ee7a Nh\u1eadt \u2013 li\u1ec7t k\u00ea <strong>SUP9, SUP9A v\u00e0 SUP10<\/strong> trong nh\u00f3m th\u00e9p l\u00f2 xo v\u00e0 n\u00eau \u1ee9ng d\u1ee5ng cho <strong>l\u00f2 xo treo \u00f4 t\u00f4, l\u00e1 nh\u00edp v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 V\u00ec v\u1eady, n\u00f3i <strong>\u201cnh\u00edp \u00f4 t\u00f4 l\u00e0m b\u1eb1ng th\u00e9p X\u201d<\/strong> l\u00e0 ch\u01b0a \u0111\u1ea7y \u0111\u1ee7. Ch\u00ednh x\u00e1c h\u01a1n ph\u1ea3i n\u00f3i <strong>t\u00f9y lo\u1ea1i nh\u00edp v\u00e0 ti\u00eau chu\u1ea9n m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t l\u1ef1a ch\u1ecdn m\u00e1c th\u00e9p ph\u00f9 h\u1ee3p<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2699\ufe0f 2. 60Si2Mn, SUP9, SUP10 kh\u00e1c nhau th\u1ebf n\u00e0o?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 \u0111i\u1ec1u kh\u00e1 nhi\u1ec1u ng\u01b0\u1eddi trong ng\u00e0nh quan t\u00e2m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>60Si2Mn<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 th\u00e9p l\u00f2 xo h\u1ec7 <strong>silic\u2013mangan<\/strong>, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u \u1ee9ng d\u1ee5ng l\u00f2 xo v\u00e0 l\u00e1 nh\u00edp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 catalogue l\u00e1 nh\u00edp \u00f4 t\u00f4 ghi tr\u1ef1c ti\u1ebfp <strong>60Si2Mn<\/strong> l\u00e0m v\u1eadt li\u1ec7u cho s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>SUP9 \/ SUP9A<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 nh\u00f3m th\u00e9p l\u00f2 xo theo ti\u00eau chu\u1ea9n JIS, c\u00f3 <strong>Cr v\u00e0 Mn<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mitsubishi Steel c\u00f4ng b\u1ed1 th\u00e0nh ph\u1ea7n c\u1ee7a SUP9 v\u00e0 SUP9A, \u0111\u1ed3ng th\u1eddi li\u1ec7t k\u00ea \u1ee9ng d\u1ee5ng cho <strong>nh\u00edp \u00f4 t\u00f4 v\u00e0 m\u00e1y x\u00e2y d\u1ef1ng<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>SUP10<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SUP10 thu\u1ed9c nh\u00f3m th\u00e9p l\u00f2 xo <strong>Cr-V<\/strong>. Th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3 c\u00f3 th\u00eam <strong>vanadi (V)<\/strong>, v\u1edbi h\u00e0m l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c Mitsubishi Steel c\u00f4ng b\u1ed1 \u1edf m\u1ee9c 0,15\u20130,25%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 catalogue v\u1eadt li\u1ec7u l\u00e1 nh\u00edp c\u0169ng ghi <strong>SUP10\/51CrV4\/50CrVA<\/strong> trong c\u00e1c c\u1ea5u h\u00ecnh v\u1eadt li\u1ec7u cho nh\u00edp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Tuy nhi\u00ean, <strong>kh\u00f4ng n\u00ean hi\u1ec3u r\u1eb1ng c\u00e1c m\u00e1c n\u00e0y ho\u00e0n to\u00e0n gi\u1ed1ng nhau<\/strong>. Ch\u00fang thu\u1ed9c c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c nhau v\u00e0 c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u0169ng nh\u01b0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt ri\u00eang.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd25 3. V\u00ec sao th\u00e9p l\u00e0m nh\u00edp ph\u1ea3i c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i cao?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y m\u1edbi l\u00e0 \u0111i\u1ec3m quan tr\u1ecdng nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi xe ch\u1ea1y qua \u1ed5 g\u00e0 ho\u1eb7c m\u1eb7t \u0111\u01b0\u1eddng kh\u00f4ng b\u1eb1ng ph\u1eb3ng, t\u1ea3i tr\u1ecdng t\u00e1c \u0111\u1ed9ng l\u00ean h\u1ec7 th\u1ed1ng treo thay \u0111\u1ed5i li\u00ean t\u1ee5c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e1 nh\u00edp s\u1ebd:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ch\u1ecbu l\u1ef1c \u2192 u\u1ed1n \u2192 \u0111\u00e0n h\u1ed3i \u2192 tr\u1edf l\u1ea1i \u2192 ti\u1ebfp t\u1ee5c ch\u1ecbu l\u1ef1c.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chu k\u1ef3 n\u00e0y c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i <strong>h\u00e0ng ngh\u00ecn, h\u00e0ng tri\u1ec7u l\u1ea7n<\/strong> trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu d\u00f9ng th\u00e9p th\u00f4ng th\u01b0\u1eddng, v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 nhanh ch\u00f3ng b\u1ecb <strong>bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n ho\u1eb7c h\u01b0 h\u1ecfng do t\u1ea3i tr\u1ecdng l\u1eb7p l\u1ea1i<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00e9p l\u00f2 xo \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn \u0111\u1ec3 \u0111\u1ea1t s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa <strong>\u0111\u1ed9 b\u1ec1n, gi\u1edbi h\u1ea1n \u0111\u00e0n h\u1ed3i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu m\u1ecfi<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd25 4. Nhi\u1ec7t luy\u1ec7n quan tr\u1ecdng kh\u00f4ng k\u00e9m m\u00e1c th\u00e9p<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 m\u1ed9t \u0111i\u1ec1u r\u1ea5t d\u1ec5 hi\u1ec3u nh\u1ea7m:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>M\u00e1c th\u00e9p t\u1ed1t ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t l\u00e1 nh\u00edp t\u1ed1t.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi t\u1ea1o h\u00ecnh, l\u00e1 nh\u00edp c\u00f2n ph\u1ea3i tr\u1ea3i qua c\u00e1c c\u00f4ng \u0111o\u1ea1n x\u1eed l\u00fd nhi\u1ec7t ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u01a1 t\u00ednh c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 c\u1ee9ng.<\/li>\n\n\n\n<li>\u0110\u1ed9 b\u1ec1n.<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng \u0111\u00e0n h\u1ed3i.<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i.<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ecbu m\u1ecfi.<\/li>\n\n\n\n<li>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00ecnh d\u1ea1ng c\u1ee7a l\u00e1 nh\u00edp.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec v\u1eady, <strong>c\u00f9ng m\u1ed9t m\u00e1c th\u00e9p nh\u01b0ng quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 nhi\u1ec7t luy\u1ec7n kh\u00e1c nhau c\u00f3 th\u1ec3 cho ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m kh\u00e1c nhau<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u26a0\ufe0f 5. Th\u00e9p nh\u00edp c\u00e0ng c\u1ee9ng c\u00f3 ph\u1ea3i c\u00e0ng t\u1ed1t?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kh\u00f4ng!<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t quan ni\u1ec7m kh\u00e1 ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t b\u1ed9 nh\u00edp t\u1ed1t kh\u00f4ng \u0111\u01a1n gi\u1ea3n l\u00e0 b\u1ed9 nh\u00edp c\u00f3 \u0111\u1ed9 c\u1ee9ng cao nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu v\u1eadt li\u1ec7u v\u00e0 qu\u00e1 tr\u00ecnh nhi\u1ec7t luy\u1ec7n kh\u00f4ng \u0111\u1ea1t s\u1ef1 c\u00e2n b\u1eb1ng ph\u00f9 h\u1ee3p, l\u00e1 nh\u00edp c\u00f3 th\u1ec3 tr\u1edf n\u00ean qu\u00e1 gi\u00f2n ho\u1eb7c kh\u00f4ng \u0111\u1ea1t kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i v\u00e0 ch\u1ecbu m\u1ecfi mong mu\u1ed1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu c\u01a1 t\u00ednh kh\u00f4ng \u0111\u1ee7, l\u00e1 nh\u00edp c\u00f3 th\u1ec3 d\u1ec5 <strong>bi\u1ebfn d\u1ea1ng, m\u1ea5t \u0111\u1ed9 cong thi\u1ebft k\u1ebf v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i<\/strong> trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 <strong>s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 \u0111\u00e0n h\u1ed3i, \u0111\u1ed9 dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu m\u1ecfi<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udee0\ufe0f 6. V\u00ec sao c\u00f9ng l\u00e0 nh\u00edp nh\u01b0ng tu\u1ed5i th\u1ecd c\u00f3 th\u1ec3 r\u1ea5t kh\u00e1c nhau?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Tu\u1ed5i th\u1ecd c\u1ee7a b\u1ed9 nh\u00edp kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o m\u00e1c th\u00e9p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3 c\u00f2n li\u00ean quan \u0111\u1ebfn:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00e1c th\u00e9p \u2192 thi\u1ebft k\u1ebf \u2192 k\u00edch th\u01b0\u1edbc l\u00e1 \u2192 t\u1ea1o h\u00ecnh \u2192 nhi\u1ec7t luy\u1ec7n \u2192 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u2192 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t \u2192 t\u1ea3i tr\u1ecdng \u2192 \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 l\u00e0 l\u00fd do hai b\u1ed9 nh\u00edp c\u00f3 h\u00ecnh d\u00e1ng kh\u00e1 gi\u1ed1ng nhau nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 tu\u1ed5i th\u1ecd th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 kh\u00e1c nhau \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udca1 K\u1ebft lu\u00e2n<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Khi l\u1ef1a ch\u1ecdn nh\u00edp thay th\u1ebf cho xe t\u1ea3i, <strong>\u0111\u1eebng ch\u1ec9 nh\u00ecn v\u00e0o s\u1ed1 l\u01b0\u1ee3ng l\u00e1 ho\u1eb7c gi\u00e1 th\u00e0nh<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t b\u1ed9 nh\u00edp ph\u00f9 h\u1ee3p ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean <strong>\u0111\u00fang lo\u1ea1i xe, t\u1ea3i tr\u1ecdng, thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng treo v\u00e0 y\u00eau c\u1ea7u s\u1eed d\u1ee5ng<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e0 quan tr\u1ecdng h\u01a1n:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>M\u1ed9t m\u00e1c th\u00e9p t\u1ed1t + quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u00fang = n\u1ec1n t\u1ea3ng c\u1ee7a m\u1ed9t b\u1ed9 nh\u00edp b\u1ec1n.<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u00edp \u00f4 t\u00f4 19-8 \u2013 Ch\u1ea5t l\u01b0\u1ee3ng t\u1ea1o n\u00ean s\u1ef1 b\u1ec1n b\u1ec9 tr\u00ean m\u1ecdi h\u00e0nh tr\u00ecnh.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nh\u00edp \u00f4 t\u00f4 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nhi\u1ec1u lo\u1ea1i th\u00e9p l\u00f2 xo nh\u01b0 60Si2Mn, SUP9, SUP10, 51CrV4. T\u00ecm hi\u1ec3u v\u1eadt li\u1ec7u v\u00e0 vai tr\u00f2 c\u1ee7a nhi\u1ec7t luy\u1ec7n v\u1edbi \u0111\u1ed9 b\u1ec1n nh\u00edp.<\/p>\n","protected":false},"author":1,"featured_media":307,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[66,70,26,68,49,57,8,6,33,67,69,65,71,29],"class_list":["post-656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thong-tin-tham-khao","tag-51crv4","tag-60si2mn","tag-hethongtreo","tag-kythuatoto","tag-lanhip","tag-nhip-o-to-2","tag-nhip-o-to","tag-nhipoto","tag-nhipxetai","tag-sup10","tag-sup9","tag-thepdanhoi","tag-theplamnhip","tag-xetai"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Nh\u00edp \u00f4 t\u00f4 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nhi\u1ec1u lo\u1ea1i th\u00e9p l\u00f2 xo nh\u01b0 60Si2Mn, SUP9, SUP10, 51CrV4. 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