GB/T4237 Standard specifies the Stainless steel hot rolled steel sheet and strip classification, code, order content, dimension, shape, weight and allowable deviation, technical requirements, test etc.GB/T4237 Standard Austenitic stainless steel main steel grade:06Cr18Ni11Nb(0Cr18Ni11Nb),Au015Cr24Ni22Mo8Mn3CuN,Au06Cr18Ni11Ti and so on.