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Stainless Steel Physical Properties
2022-04-21
1. Density
The density of carbon steel is slightly higher than that of ferritic and martensitic stainless steel, and slightly lower than that of austenitic stainless steel;
2. Resistivity
The resistivity increases in order of carbon steel, ferritic, martensitic and austenitic stainless steel;
3. The order of linear expansion coefficient is similar, austenitic stainless steel is the highest and carbon steel is the smallest;
4. Carbon steel, ferritic and martensitic stainless steels are magnetic, and austenitic stainless steels are non-magnetic, but their cold work hardening will generate magnetism when they form martensitic transformation. Heat treatment can be used to eliminate this martensite. tissue and restore its non-magnetic properties.
Compared with carbon steel, austenitic stainless steel has the following characteristics:
1) High resistivity, about 5 times that of carbon steel.3) Low thermal conductivity, about 1/3 of carbon steel.