0
Technical Brief

Investigation on mechanical properties of S30403 austenitic stainless steel at different temperatures

[+] Author and Article Information
Yaqing Lu

School of Mechanical and Power Engineering, East China University of Science and Technology University of Science and Technology, Shanghai 200237, China
Luaki9091@qq.com

Hu Hui

School of Mechanical and Power Engineering, East China University of Science and Technology University of Science and Technology, Shanghai 200237, China
huihu@ecust.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4039123 History: Received March 03, 2017; Revised January 22, 2018

Abstract

In order to study the influence of cryogenic temperature on the mechanical properties, a series of uniaxial tensile experiments were performed at different temperatures (20?, 0?, -20?, -40?, -80?, -120?, -196?) for the austenitic stainless steel S30403 (both the base material and weld joint). R_p0.2 (0.2% proof strength), R_p1.0 (1% proof strength), R_m (tensile strength), A (elongation after fracture), Z (reduction of area), s_cr (a critical threshold stress for onset of discontinuous yielding) and R_h (second hardening ratio, R_m/s_cr ) were taken into consideration. It was found that in GB150, ASME VIII-1and EN13445, the maximum allowable stress for austenitic stainless steel at low temperature (=20?) was depended on the yielding strength at room temperature (20?). Compared with R_p0.2, R_p1.0 had a linear relationship with temperature. Synthetically considering the first hardening and the second hardening, both the base material and weld joint presented a better strength performance at low temperatures. The plasticity of base material dropped as the temperature decreased, and it was kept at an acceptable level. Nonetheless, the plasticity of weld joint was nonlinear because of the non-uniform structure components.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In