- Carbon steel
When used in water and steam media with low pressure and medium temperature not exceeding 300°C, A5 ordinary carbon steel is generally used.
When used in water and steam media with medium pressure and medium temperature not exceeding 450°C, 35 high-quality carbon steel is generally used.
- Alloy Steel
When used in medium and high pressure media such as water, steam, petroleum and other media with a medium temperature not exceeding 450°C, 40Cr (chromium steel) is generally used.
When used in water, steam and other media with high pressure and medium temperature not exceeding 540°C, 38CrMoALA nitrided steel can be used.
When used in steam media with high pressure and medium temperature not exceeding 570°C, 25Cr2MoVA chromium molybdenum vanadium steel is generally used.
- Stainless acid-resistant steel
It is used for non-corrosive media and weakly corrosive media with medium and high pressure and medium temperature not exceeding 450℃. 1Cr13, 2Cr13 and 3Cr13 chromium stainless steel can be used.
When the valve is used in corrosive media, stainless acid-resistant steel such as Cr17Ni2, 1Cr18Ni9Ti, Cr18Ni12Mo2Ti, Cr18Ni12Mo3Ti and PH15-7Mo precipitation hardened steel can be used.