# Astm A564 17-4 Ph Stainless Steel General Information

17-4 Stainless - a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance. 17-4 PH is a chromium-nickel grade of stainless that may be hardened by a single low temperature precipitation-hardening heat treatment. Excellent mechanical properties at a high strength level may be obtained by such treatment. Scaling and distortion is minimized. 17-4 PH should not be used in the solution treated condition. 17-4 machines well, has excellent welding characteristics, and forges easily. The combination of good mechanical and processing properties makes this grade adaptable to a wide range of uses. Alloy 17-4 PH withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to Alloy 304 in most media.

# Astm A564 17-4 Ph Stainless Steel Properties
The physical properties of 17-4 PH stainless steel vary depending on any tempering processes done to the material. If you require specific physical properties for your application, please contact an Alro Sales Representative to make sure this material will meet your needs.

# Astm A564 17-4 Ph Stainless Steel Common Applications

Motor Shafts
Aircraft Structural Parts
Valve Stems
Gears