0Cr15Ni7Mo2Al (632)
Standard: GB / T 1220-1992 ●
Features and application:
Requirements for certain high-strength corrosion resistant containers, parts and structural parts.
● Chemical Composition:
Carbon C: ≤ 0.09
  Si Si: ≤ 1.00
  Manganese Mn: ≤ 1.00
  Sulfur S: ≤ 0.030
  Phosphorus P: ≤ 0.035
  Chromium Cr: 14.00 ~ 16.00
  Ni-Ni: 6.50 ~ 7.50
  Mo Mo: 2.00 ~ 3.00
  ● Mechanical Properties:
Tensile strength σb (MPa): 565 ℃ aging, ≥ 1210; 510 ℃ aging, ≥ 1320
Conditions yield strength σ0.2 (MPa): 565 ℃ aging, ≥ 1100; 510 ℃ aging, ≥ 1210
Elongation δ5 (%): 565 ℃ aging, ≥ 7; 510 ℃ aging, ≥ 6
Reduction of area ψ (%): 565 ℃ aging, ≥ 25; 510 ℃ aging, ≥ 20
Hardness: solid solution, ≤ 269HB; 565 ℃ aging, ≥ 375HB; 510 ℃ aging, ≥ 388HB
● Heat treatment and microstructure specifications:
Heat treatment specifications: 1) solid solution, 1000 ~ 1100 ℃ rapid cooling; 2) 565 ℃ aging, after solution treatment at 760 ± 15 ℃ maintained 90min, cooled to within 1h 15 ℃, keeping 30min, then heated to 565 ± 10 ℃ to maintain 90min, air-cooled; 3) 510 ℃ aging, the solid dissolved after treatment, at 955 ± 10 ℃ to maintain 10min, cooled to room temperature within 24h cooled to -73 ± 6 ℃ to maintain 8h, and then heated to 510 ± 10 ℃ to maintain 60min, air-cooled. Microstructure: the organization is characterized by precipitation hardening.
● Delivery status:
Delivery usually to heat treatment standard state, the treatment types specified in the contract; not indicated, according to the heat treatment state of delivery.