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
US Mexico Trade Dispute - Stainless Steel Sheets and Coils dumping US Mexico Trade Dispute - Stainless Steel Sheets and Coils dumping The US-Mexico Trade Dispute - Stainless Steel Sheets and Coils dumping is a trade dispute between the governments of The United States and Mexico. On May 26, 2006 Mexico requested consultations with the United States about a number of final anti-dumping judgments made by the US Department of Commerce. The judgments concerned the imports of stainless steel sheets and strips from Mexico, which were supposedly illegal dumping through the use of a "Zeroing" technique by the US Department of Commerce. Mexico believed that some of the laws, regulations, administrative