This paper presents a thorough testing and finite element modelling study of the material
response and structural behaviour of austenitic stainless steel circular hollow section (CHS)
stub columns after exposed to elevated temperatures. The testing programme was
conducted on two cold-formed austenitic stainless steel circular hollow sections: CHS 73× 3
and CHS 89× 3, and involved 16 material tensile coupon tests and 16 stub column tests after
exposure to eight levels of elevated temperatures ranging from 30° C to 1000° C. The …