Stainless Steel 17-7 Product Guide

Applications | Specifications | Mechanical and Chemical Data | Tolerances

Overview

The most formable of all precipitation-hardening stainless and provides high strength and hardness. The valuable mechanical properties of 17-7 stainless sheet makes it particularly well suited for aerospace applications as well as its low distortion in heat treatment makes it a common choice for intricate parts. Typically used in aerospace parts, chemical processing equipment, springs, washers, heat exchangers, power boilers, and other high temperature applications.

Common Trade Names

UNS S17700, SAE J217, AK Steel 17-7 PH®*, 17-7PH, 17-7 PH, 17/7PH, 17/7 PH, Precipitation Hardening

*AK Steel 17-7 PH® is a registered trademark of AK Steel Holding Corporation.

Other Resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

Products

Purchase Sheet/Plate 17-7

Applications

Aerospace
Chemical Processing Equipment
Springs
Washers
Heat Exchangers
Power Boilers
High Temperature Applications

Stainless 17-7 Specifications

ASTM	AMS
A313	5528
A564	5529
A579	5568
A693	5644
A705	5678

	Annealed
Physical Properties 17-7
Density	0.282 lb/in3
Ultimate Tensile Strength	105 ksi
Yield Tensile Strength	56 ksi
Shear Modulus	11,000 ksi
Shear Strength	110 ksi
Hardness Rockwell \| Brinell	B83 \| 156
Elongation at Break Percentage	29%
Reduction of Area	75%
Modulus of Elasticity	28,500 ksi
Poisson's Ratio	0.28
Machinability Percentage	75%
Melting Point	2,550-2,620 °F
Specific Heat	1.2 x 10^-1 BTU/lb-°F
Thermal Conductivity	107 BTU-in/hr-ft^2-°F
Electrical Conductivity	2.3% IACS

Chemistry Information
Element	Percentage
C	0.09 max
Mn	1 max
P	0.04 max
S	0.03 max
Si	1 max
Cr	16 - 18
Ni	6.5 - 7.75
Al	0.75 - 1.5

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