ASTM A285 ASTM A283 Hlau Phaj
Lus piav qhia luv luv:
ASTM A285 yog ib hom zoo tib yam carbon steel npaj rau fusion-welded siab hlab ntsha equipments li boiler, cia tank, tshav kub exchangers, thiab lwm yam. Nrog 3 qib steel (Qib A, Qib B, Qib C) npog tensile zog ntau yam ntawm 310-515Mpa , feem ntau ASTM A285 steel phaj yog xa raws li-dov mob.ua los ntawm kev tua, semi-tua, capped lossis rimmed steel kev coj ua raws li cov neeg siv khoom kawg.