AISI Type S15500 (15Cr-5Ni) Precipitation Hardening Stainless Steel tested at -73°C (-100°F), condition H1100

Subcategory: Ferrous Metal; Metal; Precipitation Hardening Stainless; Stainless Steel; T S10000 Series Stainless Steel

Key Words: 15-5 PH, 15-5PH, 15/5 PH, 15/5PH, XM12, AMS 5862, ASME SA705 (XM-12), ASTM A564 (XM-12), ASTM A693 (XM-12), ASTM A705 (XM-12), AFNOR NF A35-581 Z6CNU15.05, DIN 1.4540, DIN X4CrNiCuNb164, Cr-Ni 15-5, UNS S15500, AMS 5658, AMS 5659, AMS 5826

Component    Wt. % C Max 0.07   Cr 14.8   Cu 3.5   Fe 75

Component    Wt. % Mn Max 1   Nb + Ta 0.3   Ni 4.5

Component    Wt. % P Max 0.04   S Max 0.03   Si Max 1

Material Notes:
Martensitic, precipitative hardening (maraging), combining high strength and hardness with excellent corrosion resistance. Applications include valve parts, fittings and fasteners, shafts, gears, chemical process equipment, paper mill equipment, aircraft components and nuclear reactor components.

Physical Properties	Metric	English	Comments
Density	7.8 g/cc	0.282 lb/in³	Solution treated plus 480°C for 1 hour, air cooled.
Mechanical Properties
Tensile Strength, Ultimate	1186 MPa	172000 psi
Tensile Strength, Yield	1145 MPa	166000 psi	at 0.2% offset
Elongation at Break	19 %	19 %	gage length is 4 times diameter
Modulus of Elasticity	200 GPa	29000 ksi	Typical elastic modulus for stainless steel
Charpy Impact	130 J	95.9 ft-lb	at 24°C, 108 J at -12°C, 73 J at -40°C, 37 J at -73°C, 4.7 J at -195°C
Electrical Properties
Electrical Resistivity	7.7e-005 ohm-cm	7.7e-005 ohm-cm	Solution treated plus 480°C for 1 hour, air cooled.
Magnetic Permeability	95	95	approximate value for the annealed condition at RT
Thermal Properties
CTE, linear 20°C	10.8 µm/m-°C	6 µin/in-°F	at 21-93°C, 10.4 µm/m°C at -73-21°C, 10.8 µm/m°C at 21-205°C
CTE, linear 250°C	11.3 µm/m-°C	6.28 µin/in-°F	at 21-315°C, 11.7 µm/m°C at 21-425°C
CTE, linear 500°C	15.6 µm/m-°C	8.67 µin/in-°F	Typical CTE from 0 - 1000°C for stainless steel.
Specific Heat Capacity	0.42 J/g-°C	0.1 BTU/lb-°F	Solution treated plus 480°C for 1 hour, air cooled.
Thermal Conductivity	17.8 W/m-K	124 BTU-in/hr-ft²-°F	at 150°C, 19.5 W/m-°C at 260°C, 22.5 W/m-°C at 460°C, 22.7 W/m-°C at 480°C
Melting Point	1405 - 1440 °C	2560 - 2620 °F	Solution treated plus 480°C for 1 hour, air cooled.
Solidus	1405 °C	2560 °F
Liquidus	1440 °C	2620 °F

References for this datasheet.