Tsis ntev los no, tus neeg siv khoom tuaj rau lub Hoobkas mus xyuas S355J2cov yeeb nkab vuam, tag nrho txoj kev mus ncig, cov neeg ua haujlwm muag khoom piav qhia ua siab ntev.S355J2HERW steel yeeb nkab yog cov yeeb nkab carbon-manganese zoo uas muaj kev tiv thaiv zoo heev. Cov khoom siv no feem ntau siv rau hauv cov qauv xws li tsev, choj, txoj kev loj, thiab lwm yam haujlwm tsim kho.
Cov kav hlau S355J2H yog tsim los ntawm kev siv cov txheej txheem hluav taws xob tiv taus vuam (ERW), uas cuam tshuam nrog kev tsim cov phaj hlau tiaj tus rau hauv cov kav dej thiab tom qab ntawd vuam cov seams. Cov tshuaj lom neeg sib xyaw ntawm S355J2H ERW steel yeeb nkab suav nrog carbon, manganese, silicon, phosphorus, thiab sulfur, thiab qhov tsawg kawg nkaus ntawm cov zis yog 355 N / mm². Cov yeeb nkab kuj muaj cov khoom siv kho tshuab zoo, nrog rau lub zog tensile siab tshaj plaws ntawm 510-680 N / mm². Nws muaj kev vuam zoo heev thiab nws cov ntsiab lus carbon qis pab txo qhov kev pheej hmoo ntawm cov kab nrib pleb thaum vuam. Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm S355J2H ERW steel yeeb nkab yog nws qhov kev tiv thaiv kev cuam tshuam siab. Qhov no ua rau nws haum rau cov ntawv thov uas cov kav dej yuav raug rau cov khoom hnyav lossis kev co. Tsis tas li ntawd, qhov sib xws ntawm cov yeeb nkab phab ntsa tuab thiab cov nplaim sab hauv thiab sab nraud pab txhawb rau nws cov qauv kev ncaj ncees thiab yooj yim ntawm kev teeb tsa. S355J2HERW yeeb nkab hlaumuaj ntau qhov ntau thiab tsawg thiab ntev, ua rau nws yog qhov kev xaiv ntau yam rau ntau yam kev siv. Nws tuaj yeem siv los thauj cov kua, cov pa roj lossis cov khoom khov thiab, vim nws lub zog siab, kuj tseem siv tau rau cov hom phiaj kev tsim kho. Hauv kev xaus, S355J2H ERW steel yeeb nkab yog qhov kev xaiv khoom siv txhim khu kev qha thiab ruaj khov rau ntau yam kev tsim kho. Nws qhov kev tiv thaiv kev cuam tshuam siab, cov khoom siv kho tshuab zoo heev thiab kev hloov pauv ua rau nws haum rau ntau yam kev siv.
Lub sijhawm tshaj tawm: Lub Kaum Hli-11-2023