This document specifies the principles of hydrogen-induced delayed fracture susceptibility testing of automotive steel plates, definitions of related terms, symbols and descriptions, sample requirements, test equipment, test environment, test process, data processing and test report content requirements, etc. This document is applicable to the hydrogen-induced delayed fracture susceptibility evaluation of various ultra-high-strength automotive steel bare plates with a tensile strength of 1000MPa and above. It is oriented to the upstream and downstream industrial chains of domestic ultra-high-strength automotive steel, and can also be applied to other strength levels. Bare steel plate materials for automobiles.
T/CSAE 155-2020 history
2020T/CSAE 155-2020 U-shaped constant bending load test method for hydrogen induced delayed fracture sensitivity of ultra high strength automobile steel plate