There are various Anti-corrosion Steel Pipe, but the equipment investment is less, the general strength is lower than seamless steel tube. The quality of steel pipe is increasing, the specification is increasing day by day, and the seamless steel pipe is replaced in more fields. However, in a specific environment used, it is necessary to add Ni, can it achieve the purpose of corrosion protection.
China Spiral Steel Pipe has simple production process, high production efficiency, low cost, faster development. According to alloy composition, it can be roughly divided into Cr stainless steel and Cr-Ni stainless steel. According to the crystal structure, it can be divided into granule system, flax powder system, austenite field system and so on. Former classification is relatively simple, but in terms of application, the latter is more meaningful.