Qhov sib txawv ntawm cov pa roj carbon zoo tib yam thiab stainless hlau

Ordinary carbon steel, tseem hu ua hlau carbon alloy, muab faib ua cov pa roj carbon tsawg (los hu ua wrought hlau), nruab nrab carbon steel thiab cam khwb cia hlau raws li cov ntsiab lus carbon.Feem ntau, cov uas muaj cov ntsiab lus carbon tsawg dua 0.2% yog hu ua low carbon steel, feem ntau hu ua wrought hlau los yog hlau ntshiab;Hlau nrog cov ntsiab lus ntawm 0.2-1.7%;Npua hlau nrog cov ntsiab lus ntawm ntau tshaj 1.7% yog hu ua npua hlau.

Stainless hlau yog cov hlau nrog cov ntsiab lus chromium ntau dua 12.5% ​​thiab siab tiv thaiv rau sab nraud nruab nrab (acid, alkali thiab ntsev) corrosion.Raws li lub microstructure nyob rau hauv cov hlau, stainless hlau yuav muab faib ua martensite, ferrite, austenite, ferrite austenite thiab nag lossis daus hardening stainless hlau.Raws li cov kev cai ntawm lub teb chaws tus qauv gb3280-92, muaj 55 kev cai nyob rau hauv tag nrho.