This standard specifies the dimensions, shape, technical requirements, test methods, inspection rules, packaging, signs and quality certificates of heat-resistant steel plates. This standard is applicable to hot-rolled steel sheets and cold-rolled steel sheets of heat-resistant steel.
GB/T 4238-1992 history
2015GB/T 4238-2015 Heat-resisting steel plate,sheet and strip
2007GB/T 4238-2007 Heat-resisting steel plate, sheet and strip
1992GB/T 4238-1992 Heat-resisting steel sheets and plates