- Cov pa roj carbon steel
Thaum siv hauv dej thiab chav xov xwm uas tsis tshua muaj siab thiab nruab nrab kub tsis tshaj 300 degree, A5 zoo tib yam carbon steel feem ntau yog siv.
Thaum siv hauv dej thiab chav xov xwm nrog lub siab nruab nrab thiab nruab nrab kub tsis tshaj 450 degree, 35 zoo carbon steel feem ntau yog siv.
- Hlau alloy
Thaum siv nyob rau hauv nruab nrab thiab siab xov xwm xws li dej, chav, roj av thiab lwm yam xov xwm nrog ib tug nruab nrab kub tsis tshaj 450 degree, 40Cr (chromium steel) feem ntau yog siv.
Thaum siv hauv dej, chav thiab lwm yam xov xwm nrog kev kub siab thiab nruab nrab kub tsis tshaj 540 degree, 38CrMoALA nitrided hlau tuaj yeem siv.
Thaum siv hauv chav xov xwm nrog kev kub siab thiab nruab nrab kub tsis tshaj 570 degree, 25Cr2MoVA chromium molybdenum vanadium hlau feem ntau yog siv.
- Stainless acid-resistant hlau
Nws yog siv rau cov xov xwm uas tsis yog-corrosive thiab tsis muaj zog corrosive media nrog nruab nrab thiab siab siab thiab nruab nrab kub tsis tshaj 450 degree. 1Cr13, 2Cr13 thiab 3Cr13 chromium stainless hlau tuaj yeem siv tau.
Thaum lub valve yog siv nyob rau hauv corrosive media, stainless acid-resistant steel xws li Cr17Ni2, 1Cr18Ni9Ti, Cr18Ni12Mo2Ti, Cr18Ni12Mo3Ti thiab PH15-7Mo nag lossis daus hardened hlau yuav siv tau.