By Country: Whole China USA Germany Japan UK France Russia Sweden Korea International Italy Spain Poland European By Standard: Whole GB YB JB AISI UNS SAE ASTM AMS ASME MIL AWS FED DIN JIS AFNOR KS B.S. SS UNI ISO EN CNS GOST International UNE NKK GB/T YB/T PN SEW WL By Structure: Whole Austenite Austenitic-Ferritic(Duplex steel) Ferrite Cementite Pearlite Martensite Precipitation-Hardening Ferrite-Pearlitic Pearlitic Bainite Martensite-Ferrite Austenitic-Martensite AFNOR 1.7765 AFNOR 32CrMoV12-10 / 32CDV12 AFNOR 35CrMo8 AFNOR X160CrMoV12 / Z160CDV12