17-4PH Martensitic Stainless Steel Sheets

17-4PH Grade is a chromium-copper precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. 17-4PH martensitic stainless steel sheets combine high strength, hardness (up to 572°F / 300°C), and corrosion resistance. 17-4PH should not be used at temperatures above 572°F (300°C) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to Alloy 304 or 430.

17-4 Precipitation Hardening also known as Type 630 is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance. High strength is maintained to approximately 600 degrees Fahrenheit (316 degrees Celsius).
17-4PH martensitic stainless steel plates are suitalble for applications requiring high strength and a moderate level of corrosion resistance. High strength is maintained to approximately 600 degrees Fahrenheit (316 degrees Celsius). 17-4PH stainless steel mechanical properties can be optimized with heat treatment. Very high yield strength up to 1100-1300 MPa (160-190 ksi) can be achieved.
17-4PH martensitic stainless steel sheets withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to SS 304 in most media. It is corrosion resistant in some chemical, petroleum, paper, dairy and food processing industries (equivalent to 304L grade). The alloy is subject to crevice or pitting attack if exposed to stagnant seawater for any length of time.
17-4PH Martensitic Stainless Steel Types:
Plates
Sheets
Strips
Pipes