Abstract: This paper compared and analyzed the regulations for strain-hardening austenitic stainless steel studs in the domestic standards and the ASME Codes. When the domestic standards cannot meet the actual design requirements, the material type, nominal diameter and applicable temperature of strain-hardening stainless steel studs can be expanded. Since GB/T 150.1—2011 does not specify the allowable stress value of strain-hardening austenitic stainless steel studs, this paper provided a method to solve the problem and recommended the allowable stress value according to the metallographic and mechanical characteristics. The tension tests of austenitic stainless steel studs at room temperature and high temperature verified the effects of strain-hardening and provided reference for extending the application of austenitic stainless steel studs in domestic standard.

Key words: austenitic stainless steel, studs, solid solution, strain-hardening, high temperature stretching, allowable stress