In layman's terms, stainless steel valves are valves that are not easily rusted. From the material of the valve body, there are many different grades such as 301, 304, 316, 304L, and 316L, or according to international standards: CF8, CF3, CF8M , CF3M, material quality in turn, due to stainless steel material has excellent corrosion resistance, formability, compatibility, and a wide range of characteristics of the toughness and other characteristics of the series, so widely used in the heavy industry, light industry, daily necessities industries and architectural decoration and other industries.
In fact, some stainless steel valves have both non-rust properties and acid resistance (corrosion resistance).Stainless steel valves are stainless and corrosion resistant due to the formation of chromium oxide film (passivation film) on the surface.This stainless steel and corrosion resistance are relative. Tests have shown that corrosion resistance of steel in weak media such as air and water and in oxidizing media such as nitric acid increases with the increase of water content of chromium in the steel. When the chromium content reaches a certain percentage, the corrosion resistance of the steel is improved. Mutations occur, from rust-prone to rust-free, from corrosion-resistant to corrosion-resistant.
Stainless steel valve material type:
According to the organizational structure at room temperature, there are martensite, austenite, ferrite and duplex stainless steels;
Classified according to the main chemical composition, can basically be divided into chromium stainless steel and chromium nickel stainless steel two major systems;
According to the purpose, there are nitric acid resistant stainless steel, sulfuric acid resistant stainless steel, seawater resistant stainless steel, etc.
According to the type of corrosion resistance can be divided into pitting resistant stainless steel, stress corrosion resistant stainless steel, intergranular corrosion resistant stainless steel, etc.;
Classification according to functional characteristics can be divided into non-magnetic stainless steel, easy-cutting stainless steel, low-temperature stainless steel, high-strength stainless steel and so on.
Bundor is a stainless steel valve manufacturer integrating R&D, production, sales and service. The leading stainless steel valve products include stainless steel gate valves, stainless steel ball valves, stainless steel globe valves, stainless steel butterfly valves, stainless steel check valves, stainless steel regulating valves and others.