The content of chromium, iron, carbon and other alloys determines the characteristics of stainless steel joints

The characteristics of the stainless steel joint are mainly determined by the amount of chromium, iron, carbon and other alloys of stainless steel pipe fittings.

1. Gas shielded welding: the chromium and nickel on the surface of stainless steel will not be oxidized under the protection of gas during welding. The original characteristics and corrosion resistance of stainless steel will be retained in the zhejiang quick twist joint.

2. Pickling passivation: it can produce a thin, dense and hard passivation film on the outer wall of water pipes and fittings, which is the root cause of corrosion prevention.

3. Light solid fusion: stainless steel pipe fittings by the custom thread card sleeve joint after forming, welding process, must pass a 1050 - degree solid fusion processing, in order to eliminate the internal stress of stainless steel pipe fittings produced by deformation, reduce the stress corrosion, intercrystalline changes during the recovery pipe welding, Shanghai carbides dissolve in austenitic stainless steel connectors, prevent the adverse impact.

4. Sealing material: sealing material is the key point of the service life of stainless steel pipeline. The service life of sealing material determines the service life of stainless steel pipeline.

Corrosion resistance of stainless steel pipe fittings depends on the alloy elements contained in the steel.Chromium is the basic element to make stainless steel corrosion resistance, when the amount of chromium in steel reached about 1.2%, chromium and the oxygen in the corrosive medium, custom stainless steel sleeve joint on the steel surface to form a very thin oxide film (self-passivation film), can prevent the steel matrix from further corrosion.In addition to chromium, commonly used alloy elements are nickel, molybdenum, titanium, niobium, copper, nitrogen and so on, in order to meet various USES of stainless steel structure and performance requirements.

The distinction of stainless steel pipe fittings basically depends on iron and steel with the amount that contains carbon to differentiate.East China stainless steel joint manufacturer carbon content of less than 2% of the iron-carbon alloy is steel, carbon content of more than 2% is called iron.Steel is widely used because of its toughness, elasticity and rigidity.Life's Eaton stainless steel joints are all steel, but people call them different.For stainless steel, whether the magnet on or not, as long as in line with its quality standards, is stainless steel.