Stainless steel: 1Cr18Mn8Ni5N
Standard: GB / T 1220-1992
● Features and application:
Section of nickel steel, instead of grades 1Cr18Ni9.
● Chemical Composition:
Carbon C: ≤ 0.15
Si Si: ≤ 1.00
Manganese Mn: 7.50 ~ 10.00
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.060
Chromium Cr: 17.00 ~ 19.00
Ni-Ni: 4.00 ~ 6.00
N N: ≤ 0.25
● Mechanical Properties:
Tensile strength σb (MPa): ≥ 520
Conditions yield strength σ0.2 (MPa): ≥ 275
Elongation δ5 (%): ≥ 40
Reduction of area ψ (%): ≥ 45
Hardness: ≤ 207HB; ≤ 95HRB; ≤ 218HV
● Heat treatment and microstructure specifications:
Standard heat treatment: solution 1010 ~ 1120 ℃ fast-cooling.
Microstructure: Organizing for the austenitic type.
● Delivery status: normal to heat treatment delivery, the treatment types specified in the contract; not indicated, according to the heat treatment state of delivery.