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Physical properties of stainless steel screws

2021-06-30

Compared with the physical properties of stainless steel and carbon steel, the density of carbon steel is slightly higher than that of ferritic and martensitic stainless steel, but slightly lower than that of austenitic stainless steel; The resistivity increases in order of carbon steel, Ferritic, martensitic and austenitic stainless steel; The order of linear expansion coefficient is similar, austenitic stainless steel is high and carbon steel is small; Carbon steel, ferritic stainless steel and martensitic stainless steel are magnetic, while austenitic stainless steel is non-magnetic, but it will be magnetic when it is transformed into martensite by cold work hardening. This martensitic structure can be restored by heat treatment. Austenitic stainless steel has the following characteristics compared with carbon steel: 1. High electro negative rate, about 5 times that of carbon steel. 2. The large linear expansion coefficient is 40% larger than that of carbon steel. With the increase of temperature, the value of linear expansion coefficient of stainless steel screws increases accordingly. 3. Low thermal conductivity, about 1 / 3 of that of carbon steel.

Compared with the physical properties of stainless steel and carbon steel, the density of carbon steel is slightly higher than that of ferritic and martensitic stainless steel, but slightly lower than that of austenitic stainless steel; The resistivity increases in order of carbon steel, Ferritic, martensitic and austenitic stainless steel; The order of linear expansion coefficient is similar, austenitic stainless steel is high and carbon steel is small; Carbon steel, ferritic stainless steel and martensitic stainless steel are magnetic, while austenitic stainless steel is non-magnetic, but it will be magnetic when it is transformed into martensite by cold work hardening. This martensitic structure can be restored by heat treatment. Austenitic stainless steel has the following characteristics compared with carbon steel:
1. High electro negative rate, about 5 times that of carbon steel.
2. The large linear expansion coefficient is 40% larger than that of carbon steel. With the increase of temperature, the value of linear expansion coefficient of stainless steel screws increases accordingly.
3. Low thermal conductivity, about 1 / 3 of that of carbon steel.

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Physical properties of stainless steel screws

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