The so-called difference between stainless steel seamless steel pipe and carbon seamless steel pipe
mainly refers to the difference in design between stainless steel and carbon steel, that is, the design rules of these two steels are not common.
Stainless steel design rules do not apply to carbon steel, because there are three basic differences between stainless steel and carbon seamless steel pipe.
First, cold working stainless steel as an example of work hardening. When it bends, it has anisotropy, i.e. different horizontal and vertical properties. The strength can be increased by cold working, but if the bending area is less than the total area and the growth rate can be neglected, the strength increase can increase the safety factor to a certain extent. In these cases,
Secondly, the elastic limit of stainless steel is about 50% of the yield stress in the stress/strain curves of different shapes. According to the minimum value, the yield stress is lower than that of medium carbon steel. In these cases,
Thirdly, stainless steel has no yield point, which usually means that the yield stress of 0.2 is considered equivalent.