Stainless Steel 17-7 PH is a magnetically soft austenitic stainless steel featuring good corrosion resistance and high strength. It contains 17% chromium, 7% nickel, 0.13 to 0.45 carbon, 1% manganese and other minor alloying elements. This composition allows for superior surface hardness retention when put through secondary hardening processes such as precipitation heat treatment, where it can achieve a hardness of up to 45 HRC on the Rockwell C scale.

Stainless Steel 17-7 PH is a precipitation-hardening stainless steel used in aerospace and other industries. It has excellent strength, elasticity, and corrosion resistance properties at low and high temperatures. Its good mechanical properties make it an ideal material for applications requiring superior hardness or wear resistance, such as aircraft components, turbine blades, valve parts, pump parts, fasteners, etc. Also, its heat-treatable property allows it to be easily formed into complex shapes, making it an essential metal in modern industry today.