17-4PH & S17400 precipitation hardening steel
2026-08-09 08:16:00   Origin：   Remark：0 Click：

Typical Applications
Chemical equipment & parts.
Mechanical parts used in the condition of corrosion resistance.
Automobile parts, exhaust pipe, Electronics, Turbine motor blade.
Bolt and nut, Valve body, Pressure vessel.

Typical Chemical Compositions (mass weight - %)
C (％): ≤ 0.055, Si (％): ≤ 1.00, Mn (％): ≤ 0.50, P (％)≤: 0.030, S (％)≤: 0.015
Cr (％): 15.0 ~ 16.0, Ni (％): 3.00 ~ 4.50, Mo (％): ≤ 0.60, Nb (％): 0.15 ~ 0.35
Cu (%): 3.00 ~ 3.70, Fe (%): balance

Mechanical Properties Under Age treatment
Thickness/≤mm: 100
Condition of thermal treatment: AT (Solution treatment)
Hardness ≤ HBS: 360
Yield strength σ0.2 ≥ MPa: -        
Tensile strength σb / MPa:  ≤1200
Elongation δ ≥ (％):  - 
Elongation δ(transversal ) ≥ (％):   -      
Impact absorbing power Akv ≥ J : -
Condition of thermal treatment: P930
Hardness ≤ HBS: -
Yield strength σ0.2 ≥  MPa: 720        
Tensile strength σb / MPa:  930~1100
Elongation δ ≥ (％):  -16
Impact absorbing power Akv ≥ J : 40
Condition of thermal treatment: P960
Hardness ≤ HBS: -
Yield strength σ0.2 ≥ MPa: 790        
Tensile strength σb / MPa:  960~1160
Elongation δ ≥ (％):  12
Impact absorbing power Akv ≥ J : -