Alloy 17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation-hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance.
The alloy is furnished in the solution annealed condition (Condition A). It should not be used at temperatures above 572°F (300°C) or for cryogenic service. Optimal mechanical properties can be obtained by subjecting the alloy to age-hardening heat treatments. Heat treatment in the 900°F (482°C) range produces the highest strength.
SPECIFICATION
- Specifications ASTM B435 / ASME SB435
- Width 1000mm / 1219mm /1250mm / 1500mm / 2000mm
- Length 2000 mm / 2440 mm / 2500 mm / 3000 mm / 6000 mm
- Thickness 0.1mm to 12 mm Thk
- Hardness Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Finish Hot rolled plate (HR), Cold rolled sheet (CR).
Form Coils, Foils, Rolls, Plain Sheet, Strip, Flats, Blank (Circle), Ring (Flange) etc. STAINLESS STEEL martensitic precipitation hardened stainless steel
Chemical composition
C % Si % Mn % P % S % Al % vCr % Cu % Ni % Mo % Nb % Ti % V %
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