Elevated temperature material properties of a new high-chromium austenitic stainless steel

Liang, Y. , Manninen, T., Zhao, O., Walport, F. and Gardner, L. (2019) Elevated temperature material properties of a new high-chromium austenitic stainless steel. Journal of Constructional Steel Research, 152, pp. 261-273. (doi: 10.1016/j.jcsr.2018.04.028)

Abstract

A testing programme was conducted to investigate the material properties of a new high-chromium grade of austenitic stainless steel - EN 1.4420 at elevated temperatures. A total of 164 tensile coupons extracted from both cold-rolled and hot-rolled sheets were tested; 80 coupons were tested isothermally with temperatures ranging from 25 °C to 1100 °C, and 84 were tested anisothermally with stress levels ranging from 10% to 90% of the material 0.2% proof stress at room temperature. The experimentally derived reduction factors for the key material properties were compared with existing design values. Design recommendations for the elevated temperature reduction factors were then proposed for this new grade, and a two-stage Ramberg–Osgood model was shown to be able to accurately represent the material stress–strain response at elevated temperature.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Liang, Dr Yating
• Authors: Liang, Y., Manninen, T., Zhao, O., Walport, F., and Gardner, L.
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment
• Journal Name: Journal of Constructional Steel Research
• Publisher: Elsevier
• ISSN: 0143-974X
• ISSN (Online): 1873-5983
• Published Online: 10 May 2018
• Copyright Holders: Copyright © 2018 Elsevier Ltd.
• First Published: First published in Journal of Constructional Steel Research 152: 261-273
• Publisher Policy: Reproduced in accordance with the publisher copyright policy