15-5PH Stainless Steel Chemical Data, Mechanical Properties and Specifications for 15-5PH Stainless Steel Chemical Mechanical Specs Chemical Chemical Range Element Minimum Maximum Carbon -- 0.07 Chromium 14 15.5 Copper 2.5 4.5 Iron Balance -- Manganese -- 1 Nickel 3.5 5.5 Niobium 0.15 0.45 Phosphorus -- 0.04 Silicon -- 1 Sulphur -- 0.03 Mechanical Typical Mechanical Properties Temper Tensile Strength Yield Strength Elongation at Break H900 200 ksi 185 ksi 10.0% H1050 170 ksi 165 ksi 12.0% H1150 145 ksi 125 ksi 15.0% Specs Specifications AMS 5659, Type 1 (Vac Melt Bar) AMS 5659, Type 2 (ESR Bar) AMS 2300 (Bar) ASTM A564 (Bar) Type XM-12 (Bar) AMS 5862 (Sheet) UNS S15500
