Effects of elevated temperatures on mechanical properties of stainless steel

• Published in: Fourth International Conference on Advances in Steel Structures pp. 1535 - 1544
• Main Authors: Chen, Ju, Young, Ben
• Format: Book Chapter
• Language: English
• Published: Elsevier Ltd 2005
• ISBN: 9780080446370; 008044637X
• DOI: 10.1016/B978-008044637-0/50229-8

The chapter presents mechanical properties of stainless steel at elevated temperatures. Accurate prediction of mechanical properties of stainless steel at elevated temperatures is necessary to determine the load-carrying capacity of structures under fire conditions. However, full utilization of the special feature of stainless steel has not been possible because of the lack of technique data on the fire resistance of a stainless steel structural material. Therefore, a series of tensile coupon tests of stainless steel type EN 1.4462 and EN 1.4301 with plate thickness of 2.0mm is conducted in the chapter. The steady and transient state tests at different temperatures approximately ranged from 20°C to 1000°C are conducted in the chapter. The curves of elasticity modulus and the yield strength obtained at different strain levels versus different temperatures are plotted and compared with the prediction from the Australian, British and European standards. The test results obtained from the study are also compared with the test results predicted by other researchers. A unified equation for yield strength and elasticity modulus of stainless steel at elevated temperatures is proposed in the chapter. The proposed equation conservatively predicted the yield strength and the elasticity modulus compared with the test results.