1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,Wuhan 430081, China
2. College of Science, Wuhan University of Science and Technology, Wuhan 430081, China
et al.
Cryogenic high manganese austenitic steel with the excellent mechanical properties at low temperature and room temperature, will become the storage and transportation equipment materials for liquefied natural gas (LNG) and liquefied hydrogen (LH2). In the process of smelting, rolling, welding, cold working and hot working, physical and mechanical properties are needed as the theoretical basis for formulating process parameters, but there is a lack of relevant reports in the current literature. In this paper, we measured the density, resistivity, coefficient of thermal expansion, coefficient of thermal conductivity, melting range, specific heat capacity, Poisson ratio, Young’s modulus, yield strength, tensile strength, absorbed energy of HMA400 cryogenic high manganese austenitic steel and supporting JMn25 welding wires, in order to provide reliable physical and mechanical parameters for the manufacture and application of cryogenic high manganese austenitic steel.