Stainless Steel 15-5 Product Guide

Applications | Specifications | Mechanical and Chemical Data | Tolerances

Overview

15-5 stainless steel is a martensitic, precipitation hardening steel designed for higher strength than 17-4 stainless. The higher strength comes at the cost of lower corrosion resistance at higher temperatures. Typically used in aerospace, petrochemical applications, pulp and paper machines, and food productions.

Common Trade Names

UNS S15500, 15-5 PH, 15-5PH, 15/5 PH, 15/5PH, Cr-Ni 15-5, Precipitation Hardening

Other Resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

Products

Purchase Hex Bar 15-5 | Round Bar 15-5 | Sheet/Plate 15-5

Applications

Aerospace
Petrochemical
Pulp and Paper Machines
Food Production

Stainless 15-5 Specifications

ASTM	AMS
A693	5659
A694	5862
A705	5826

	Annealed	-H900
Physical Properties 15-5
Density	0.284 lb/in3	0.284 lb/in3
Ultimate Tensile Strength	161.5 ksi	190 ksi
Yield Tensile Strength	141.5 ksi	170 ksi
Fatigue Strength	N/A	95 ksi
Shear Strength	N/A	130 ksi
Shear Modulus	N/A	11,000 ksi
Hardness Rockwell \| Brinell	C38 \| 363 max	C40-47 \| 388-444
Elongation at Break Percentage	8%	10%
Reduction of Area	N/A	16%
Modulus of Elasticity	N/A	29,000 ksi
Poisson's Ratio	0.28	0.28
Machinability Percentage	45%	N/A
Melting Point	2,520-2,600 °F	2,520-2,600 °F
Specific Heat	1.1 x 10^-1 BTU/lb-°F	1.1 x 10^-1 BTU/lb-°F
Thermal Conductivity	118 BTU-in/hr-ft^2-°F	118 BTU-in/hr-ft^2-°F
Electrical Conductivity	2.2% IACS	2.2% IACS

Chemistry Information
Element	Percentage
C	0.07 max
Cr	14.8
Cu	3.5
Fe	75
Mn	1 max
Nb + Ta	0.3
Ni	4.5
P	0.04 max
S	0.03 max
Si	1 max

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