The so-called the difference between stainless seamless steel pipe
and carbon seamless steel pipe, mainly refers to the stainless steel and carbon steel in the design rules of the difference, that is to say that the two steel design rules can not be universal. These differences are summarized as follows:
The design rules for stainless steel can not be used for carbon steel because there are three fundamental differences between stainless steel and carbon steel:
First, the cold processing of stainless steel to produce hardening, for example, when bending anisotropy, namely: horizontal and vertical performance is different. It is possible to use an increased strength by cold working, but if the bending area is smaller than the total area, the increase in the strength can increase the safety factor to a certain extent.
Second, the stress / strain curve shape is different, the elastic limit of stainless steel is about 50% of the yield stress, the standard specified in the minimum value, the yield stress value is lower than the carbon steel yield stress value.
Third, the stainless steel has no yield point, usually with ó0.2 to indicate that the yield stress is considered equivalent.