A790 S31803 duplex stainless steel pipe price

A790 S31803 duplex stainless steel pipe

There are 2205 stainless steel pipes and 2205 duplex stainless seamless pipes in China.2205 duplex stainless steel sheet, 2205 stainless steel bar, forging material, pipe fitting, strip material, etc.Early dual-phase stainless steel can withstand moderate strength uniform corrosion and chloride stress corrosion cracking, but when used in welding, its performance will be greatly reduced.In order to improve this situation, nitrogen is added to two-phase stainless steel 2205, which not only increases the corrosion resistance, but also improves the welding performance.Due to the special performance characteristics of 220p dual phase steel, its application range is very wide, so far it is a large number of 205 plate.

Chemical composition 

The main alloy elements of duplex steel are Cr, Ni, Mo and N.Cr and Mo were used to increase ferrite content, while Ni and N were austenite stable elements.Some kinds of steel also have Mn, Cu, W and other elements.Cr, Ni, Mo can improve corrosion resistance.The resistance to pitting corrosion and crack corrosion is especially good in the environment containing chloride.

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