Stainless steel can be mainly divided into Austenitic stainless steel, Ferritic stainless steel, Martensitic stainless steel and Martensitic precipitation-hardening stainless steel. -- Austenitic stainless steel has strong corrosion resistance, high toughness and plasticity. It is widely used in petrochemical industry, mechanical equipment, furniture decoration, food & medical industries. -- Ferritic stainless steel has excellent characteristics, such as soft magnetism, oxidation resistance, corrosion resistance. It is mostly used in the manufacture of corrosion resistance solenoid valve, automobile exhaust system parts, and so on. -- Martensitic stainless steel can obtain higher strength, hardness and wear resistance after heat treatment , it is often used for fasteners, shafts, bearings, piston rods, gears and so on. -- Martensitic precipitation-hardening stainless steel is with high strength and hardness. It is widely used in valves, shafts and other parts with requirements on corrosion resistance and high strength.
JIS Standard | AISI Standard | DIN Standard | GB Standard | |
Austenitic stainless steel | SUS303 | S30300,303 | X8CrNiS18-9,1.4305 | Y12Cr18Ni9 |
SUS303Cu | — | — | Y12Cr18Ni9Cu3 | |
SUS304 | S30400,304 | X5CrNi18-10,1.4301 | 06Cr19Ni10 | |
SUS304L | S30403,304L | X2CrNi19-11,1.4306 | 022Cr19Ni10 | |
SUS316 | S31600,316 | X5CrNiMo17-12-2,1.4401 | 06Cr17Ni12Mo2 | |
Ferritic stainless steel | SUS430 | S43000,430 | X6Cr17,1.4016 | 10Cr17 |
SUS430F | S43020,430F | — | Y10Cr17 | |
Martensitic stainless steel | SUS416 | S41900,416 | X12CrS13,1.4005 | Y12Cr13 |
SUS420F | S42020,420F | X29CrS13,1.4029 | Y30Cr13 | |
SUS420J1 | S42000,420 | X20Cr13,1.4021 | 20Cr13 | |
SUS420J2 | S42000,420 | X30Cr13,1.4028 | 30Cr13 | |
Martensitic precipitation-hardening stainless steel | SUS630 | S17400,630 | X5CrNiCuNb16-4,1.4542 | 05Cr17Ni4Cu4Nb |