Stainless steel seamless tubes and carbon steel seamless tubes are widely used in industry,

One, cold working stainless steel produce work hardening, for example, bending with anisotropy, that is: transverse and longitudinal performance is different.

The increased strength due to cold processing can be utilized, but if the bending area is small compared to the total area and this increase is ignored, the increased strength can improve the safety factor to a certain extent.

The elastic limit of stainless steel is about 50% of the yield stress, which is lower than that of medium carbon steel according to the small value specified in the standard.

Stainless steel has no yield point, and the yield stress is usually 60.2, which is considered to be the local value.