17-4 stainless steel 17-4 stainless steel SAE type 630 stainless steel (more commonly known as 17-4; also known as UNS 17400) is a grade of martensitic precipitation-hardened stainless steel. It contains approximately 15–17.5% (17) chromium and 3–5% (4) nickel, as well as 3–5% copper. 17-4 can be heat treated to high levels of strength and hardness, and features corrosion resistance and machinability comparable to austenitic 304 stainless. Being martensitic, 17-4 is magnetic. 17-4 is capable of being hardened up to approximately 44 Rc when heat treated to condition H900. Overaging (aging beyond the peak strength condition) improves resistance to stress corrosion cracking. Uses
Stainless Steel Studios going to open the book and put his finger on the first item he saw, hence that would be the name of his new company. The item Rick located was a stainless steel shower head. The logo was designed by Stainless Steel with Jam Design, it is a silver ball with a salamander on top of it. On November 25, 2005, Gamasutra reported that Stainless Steel Studios quietly ceased operations and laid off its employees. The content of the official website was removed in November. Former SSSI employees Bob Scott and Daniel Higgins confirmed rumors appearing on the HeavenGames Rise