42CrMoA Alloy Steel Bar GB/T 3077-1999
Kev faib tawm los ntawm kev siv: 1) Hlau rau kev tsim kho thiab engineering: a. zoo tib yam carbon structural steel; b. low alloy structural steel; c. reinforced steel . 2) Cov qauv hlau: a. Hlau rau machinery manufacturing: a) quenched thiab tempered structural steel; b) Case hardened structural steel: nrog rau carburized steel, ammonia steel thiab nto hardening hlau; c) yooj yim-rau-txiav cov qauv hlau; d) Cold yas forming steel: nrog rau txias stamping steel thiab txias taub hau hlau. b. caij nplooj ntoos hlav steel c. bearing steel 3) cuab yeej steel: a. carbon hlau; b. alloy cuab yeej steel; c. kev kub ceev cuab yeej steel. 4) tshwj xeeb kev ua haujlwm steel: a. acid resistant stainless hlau; b. cov hlau tsis muaj cua sov, suav nrog cov hlau tsis xeb, cov hlau tsis muaj cua sov, cov roj valve steel; c. Hluav taws xob alloy steel; d. hnav-resistant steel; thiab. qis kub steel; F. hluav taws xob steel 5) Kev cob qhia steel, xws li choj hlau, nkoj steel, boiler steel, siab hlab ntsha hlau, ua liaj ua teb machinery steel, thiab lwm yam.
