Stainless steel is a type of alloy that contains about 10.5 percent or more chromium and more than 50 percent iron. This alloy is resistant to rust because the chromium creates an oxide film on the surface.
Purpose
- Stainless steel is used because of its corrosion-resistant properties. It is used for vehicle parts, kitchen appliances and utensils, and anywhere else metal may turn into rust.
Uses
- Stainless steel is especially convenient in the kitchen. Kitchen utensils made of stainless steel are durable, sterile and attractive.
Properties
- The corrosion resistance is due to the chromium added in the iron. Even if the oxide film is damaged, it is self-sustaining as long as oxygen is present.
Health
- Stainless steel poses little risk when used for cooking. The iron can be beneficial and so can the chromium in trace amounts. Nickel, although poisonous, is in amounts small enough to cause no concern. If you are allergic to nickel, however, you should avoid stainless steel completely.
Categories
- There are four categories of stainless steel alloys: the martensitic, ferritic, austenitic and duplex groups. The type of element added and the percentage added determine the alloy's category.
没有评论:
发表评论