AISI Type 420 provides full corrosion resistance only in the hardened or hardened and stress relieved conditions. In these conditions, its corrosion resistance is similar to Type 410. Type 420 resists corrosion by the atmosphere, fresh water, mine water, steam, carbonic acid, crude oil, gasoline, perspiration, alcohol, ammonia, mercury, sterilizing solutions, …
Aplicaciones: 1.4021 | AISI 420 es un acero al cromo, martensítico, resistente a los ácidos con una buena resistencia a la corrosión y en medios de cloruro moderadamente corrosivos, tales como ácidos orgánicos, jabones y disolventes. Las aplicaciones principales son en la industria de la ingeniería, petróleo y petroquímica mecánica y
SAE steel grades. The SAE steel grades system is a standard alloy numbering system (SAE J1086 - Numbering Metals and Alloys) for steel grades maintained by SAE International . In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.
The loading–unloading curves for the AISI 420 steel normalized at 975 (a), 1025 (b), and 1075 C (c) followed by annealing at 250, 350, 450, 550, and 650 C. between 250 and 450 C heat treatment temperatures, sharply dropped, and eventually stabilized.