Dab tsi yog ASTM A179?
ASTM A179 yog tus qauv tsim los ntawm Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv. Nws lub npe tag nrho yog "Seamless khaub thuas-kos cov roj av roj carbon roj tsawg rau cov pa hluav taws thiab cov hnab looj". Tus qauv no feem ntau yog siv los tsim cov cuaular kub hloov pauv, cov tshuab looj thiab lwm yam khoom siv cua sov uas xav tau cov khoom siv cua sov thiab cov khoom siv cua sov. Cov yam ntxwv ntawm Astm A179 Cov Kav Hlau Xws Li:
Cov Khoom Siv Ntshiab: Cov yeeb nkab tshuaj ntawm cov yeeb nkab steel yog tswj hwm, suav nrog cov carbon (m) thiab Sulphorus (P) thiab Sholosion tsis zoo.
Cov txheej txheem kos duab kos duab: ua los ntawm cov txheej txheem kos khaub ncaws, cov txheej txheem no tuaj yeem kho cov nplej ntawm cov khoom thiab txhim kho lub zog thiab tawv ntawm cov yeeb nkab steel.
Kev Kho Cua Sov: Tom qab cov yeeb nkab kawg, cov yeeb nkab steel yuav yog cua sov kho ntawm qhov kub tsawg dua 650 degree cov khoom siv.
Cov yeeb nkab steel no tau siv dav hauv ntau qhov kev lag luam xws li tshuaj lom neeg, roj av, thiab lub hwj chim vim nws txoj kev ua tau zoo thiab kev ua tau zoo thiab muaj feem xyuam.
