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Author: J.R. Davis, Editor | Document Download | Product code: ZAUTB2001P257
File size: 292 KB
Classified as: Stainless Steels
Free to Members
Stainless steels are iron-base alloys that contain a minimum of about 11% Cr, the amount needed to prevent the formation of rust in unpolluted atmospheres (hence the designation stainless). Most stainless steels contain less than 30% Cr or more than 50% Fe. They achieve their stainless characteristics through the formation of an invisible and adherent chromium-rich oxide passive film. This oxide forms and heals itself in the presence of oxygen. Other elements added to improve particular characteristics include nickel, manganese, molybdenum, copper, titanium, silicon, niobium, aluminum, sulfur, and selenium. Carbon is normally present in amounts ranging from less than 0.03% to over 1.0% in certain grades.
- From: Alloying: Understanding the Basics (ASM International)
- Published: December 01, 2001
- Pages: 33
- Review Type: Peer reviewed
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Metals and Alloys | Stainless Steels