Stainless steels could be divided into five categories: 1. Ferritic Stainless Steels 2. Martensitic Stainless Steels 3. Austenitic Stainless Steels 4. Duplex Stainless Steels 5. Precipitation Hardenable Stainless Steels. Type # 1. Ferritic Stainless Steels: These are iron-chromium alloys having chromium from 11.5 to 27% but usually between 17 to 26%. These alloys are ferritic in structure up to the [...]
In this article we will discuss about:- 1. Meaning of Stainless Steels 2. Properties of Stainless Steels 3. Heat Treatment. Meaning of Stainless Steels: Stainless steels are stainless as these have a minimum of 11.5% chromium in them, which having more affinity for oxygen than iron has, forms a very thin, protective and stable oxide (probably Cr2O3) film on the [...]
In this article we will discuss about:- 1. Meaning of Stainless Steels 2. Corrosion Resistance of Stainless Steels 3. Classification 4. Use of Rare Earths in the Manufacture. Meaning of Stainless Steels: Stainless steel is iron base alloy that has a great resistance to corrosion. It is observed that a thin, transparent, and very tough film forms on the surface [...]