SUS420J1
Standard: GB / T 1220-1992
Features and application:
    Has some wear and corrosion resistance, hardness, its price is lower stainless steel ball in a class for general requirements for stainless steel work environment. Applicable to all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation vehicles, and household appliances. Used for manufacture of anti-air, steam, water, corrosion and oxidation of acid components.
Chemical composition:
  C 0.16-0.25 Si ≤ 1.00 Mn ≤ 1.00 Cr 12.00-14.00 P ≤ 0.040, S ≤ 0.030
Performance:
Yield strength (N/mm2) ≥ 225 Tensile strength (N/mm2) ≥ 520 elongation EL (%) ≥ 18 Hardness ≤ HB223