SUS631 stainless steel
Japan SUS631 (17-7PH GB 0Cr17Ni7Al) is a dispersion hardened stainless steel, high strength and hardness, fatigue resistance, good corrosion resistance and formability, and when the temperature and very little distortion, good performance of this steel, in particular, apply aviation and aerospace, this particular alloy is also suitable for other high strength, corrosion resistance requirements of the area. At high temperature to 316 ℃, the spring performance is still good. SUS631 used in aerospace, chemical, petrochemical, paper and metal processing industry.
SUS631 chemical composition: silicon (Si) ≤ 1.00,
Phosphorus (P) ≤ 0.035,
Sulfur (S) ≤ 0.030,
Chromium (Cr) 16.00 ~ 18.00,
Aluminum (Al) 0.75 ~ 1.50,
Carbon (C) ≤ 0.09,
Manganese (Mn) ≤ 1.00,
Nickel (Ni) 6.50 ~ 7.75,
Copper (Cu) ≤ 0.5
● Mechanical Properties:
Tensile strength σb (MPa): solid solution, ≤ 1030; 565 ℃ aging, ≥ 1140; 510 ℃ aging, ≥ 1230
Conditions yield strength σ0.2 (MPa): solid solution, ≤ 380; 565 ℃ aging, ≥ 960; 510 ℃ aging, ≥ 1030
Elongation δ5 (%): solid solution, ≥ 20; 565 ℃ aging, ≥ 5; 510 ℃ aging, ≥ 4
Reduction of area ψ (%): 565 ℃ aging, ≥ 25; 510 ℃ aging, ≥ 10
Hardness: solid solution, ≤ 229HB; 565 ℃ aging, ≥ 363HB; 510 ℃ aging, ≥ 388HB
● Heat treatment and microstructure specifications:
Heat treatment specifications: 1) solid solution, 1000 ~ 1100 ℃ rapid cooling; 2) 565 ℃ aging, after solution treatment, 760 ± 15 ℃ maintained 90min, cooled to within 1h 15 ℃, keeping 30min, then heated to 565 ± 10 ℃ to maintain 90min, air-cooled; 3) 510 ℃ aging, after solution treatment, 955 ± 10 ℃ to maintain 10min, cooled to room temperature in less than 24h cooled to -73 ± 6 ℃, keeping 8h, and then heated to 510 ± 10 ℃ for 60min, air-cooled.
Microstructure: the organization is characterized by precipitation hardening.
Japan SUS631 (17-7PH GB 0Cr17Ni7Al) is a dispersion hardened stainless steel, high strength and hardness, fatigue resistance, good corrosion resistance and formability, and when the temperature and very little distortion, good performance of this steel, in particular, apply aviation and aerospace, this particular alloy is also suitable for other high strength, corrosion resistance requirements of the area. At high temperature to 316 ℃, the spring performance is still good. SUS631 used in aerospace, chemical, petrochemical, paper and metal processing industry.
SUS631 chemical composition: silicon (Si) ≤ 1.00,
Phosphorus (P) ≤ 0.035,
Sulfur (S) ≤ 0.030,
Chromium (Cr) 16.00 ~ 18.00,
Aluminum (Al) 0.75 ~ 1.50,
Carbon (C) ≤ 0.09,
Manganese (Mn) ≤ 1.00,
Nickel (Ni) 6.50 ~ 7.75,
Copper (Cu) ≤ 0.5
● Mechanical Properties:
Tensile strength σb (MPa): solid solution, ≤ 1030; 565 ℃ aging, ≥ 1140; 510 ℃ aging, ≥ 1230
Conditions yield strength σ0.2 (MPa): solid solution, ≤ 380; 565 ℃ aging, ≥ 960; 510 ℃ aging, ≥ 1030
Elongation δ5 (%): solid solution, ≥ 20; 565 ℃ aging, ≥ 5; 510 ℃ aging, ≥ 4
Reduction of area ψ (%): 565 ℃ aging, ≥ 25; 510 ℃ aging, ≥ 10
Hardness: solid solution, ≤ 229HB; 565 ℃ aging, ≥ 363HB; 510 ℃ aging, ≥ 388HB
● Heat treatment and microstructure specifications:
Heat treatment specifications: 1) solid solution, 1000 ~ 1100 ℃ rapid cooling; 2) 565 ℃ aging, after solution treatment, 760 ± 15 ℃ maintained 90min, cooled to within 1h 15 ℃, keeping 30min, then heated to 565 ± 10 ℃ to maintain 90min, air-cooled; 3) 510 ℃ aging, after solution treatment, 955 ± 10 ℃ to maintain 10min, cooled to room temperature in less than 24h cooled to -73 ± 6 ℃, keeping 8h, and then heated to 510 ± 10 ℃ for 60min, air-cooled.
Microstructure: the organization is characterized by precipitation hardening.
