Supreme Steels

13-8PH

Product Description:

13-8PH (also known as 13-8 precipitation-hardening stainless steel) is a high-strength stainless steel alloy that combines the excellent corrosion resistance of chromium and the strength of precipitation hardening. It is particularly known for its exceptional combination of strength, toughness, and resistance to both general corrosion and stress corrosion cracking. The alloy is typically used in aerospace, defense, and high-performance applications that require high strength and resistance to fatigue, as well as good weldability.

Features of 13-8PH:

Specifications:

Composition of 13-8PH Stainless Steel:

ElementPercentage
Nickel (Ni)7.50 – 9.50
Chromium (Cr)12.00 – 14.00
Molybdenum (Mo)2.00 – 3.00
Carbon (C)0.07% Max
Iron (Fe)Balance
Manganese (Mn)1.00% Max
Silicon (Si)1.00% Max
Phosphorus (P)0.04% Max
Sulfur (S)0.03% Max

Physical Properties:

Property Value
Density 7.85 g/cm³
Melting Point 1400-1450°C (2552-2642°F)
Hardness (Rockwell C) 45 HRC (after hardening)
Tensile Strength (Ultimate) 1550 MPa (225,000 psi)
Yield Strength 1300 MPa (189,000 psi)
Elongation 8%
Modulus of Elasticity 200 GPa
Thermal Conductivity 15.2 W/m·K
Coefficient of Thermal Expansion 16.0 × 10^-6 /°C