| Definition: containing more than 12% of chromium, which are resistant to chemical substances against steel.
Principle: Stainless steel is not no rust, but rust is not easy. The principle is to rely on chromium additions, in the steel surface layer of organized dense chromium oxide layer can effectively block the re-steel contact with air so that oxygen in the air can not enter steel, the steel to achieve the prevention of Health rust effect.
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Category: Chinese National Standards (CNS), Japanese Industrial Standards (JIS) and the American Iron and Steel Institute (AISI) figures to show that the use of three different stainless steel, and is widely quoted by the industry to do, of which 200, Department of Chromium - Nickel - Manganese austenitic stainless steel, 300, Department of chromium - nickel austenitic stainless steel, 400 stainless steel's Department of chromium (commonly known as stainless iron), including the martensite and ferrite.
In addition, there are the use of composition, permeability, whether heat treatment and steel hardening kinds of numbers to classify, classification methods, such as the table below: |
+Stainless Steel Ball