ASTM A36 Hlau Phaj

Raws li qhov ntau ntawm cov pa roj carbon uas muaj nyob rau hauv cov hlau sib xyaw. Cov hlau carbon qis dua yog cov mos dua thiab yooj yim tsim dua, thiab cov hlau uas muaj cov pa roj carbon ntau dua yog cov tawv dua thiab muaj zog dua, tab sis tsis yooj yim khoov, thiab lawv nyuaj dua rau tshuab thiab vuam. Hauv qab no yog cov yam ntxwv ntawm cov qib ntawm cov hlau carbon uas peb muab:
● Hlau Carbon Qis - Muaj 0.05% -0.25% carbon thiab txog li 0.4% manganese. Kuj tseem hu ua hlau mos, nws yog cov khoom siv pheej yig uas yooj yim rau kev ua kom zoo nkauj. Txawm hais tias tsis nyuaj npaum li cov hlau carbon siab dua, kev txhuam tsheb tuaj yeem ua rau nws qhov nyuaj ntawm qhov chaw.
● Hlau Carbon Nruab Nrab - Muaj 0.29%-0.54% carbon, nrog rau 0.60%-1.65% manganese. Hlau carbon nruab nrab yog cov hlau uas yoog tau thiab muaj zog, nrog rau cov yam ntxwv siv tau ntev.
● Hlau Carbon Siab – Muaj 0.55%-0.95% carbon, nrog rau 0.30%-0.90% manganese. Nws muaj zog heev thiab khaws cia cov duab zoo, ua rau nws zoo tagnrho rau cov springs thiab hlau.
● Hlau Carbon Siab Heev - Muaj cov pa roj carbon 0.96% -2.1%. Nws cov pa roj carbon ntau ua rau nws yog cov khoom siv muaj zog heev. Vim nws tsis yooj yim tawg, qib no yuav tsum tau siv tshwj xeeb.