An overview of the mechanical properties of stainless steel wire mesh

1.    Heat resistance of stainless steel

Heat resistance refers to the performance of anti-oxidation or gas medium corrosion resistance at high temperature, that is, thermal stability, and at the same time, it has sufficient strength at high temperature, that is, thermal strength.

2.    Mechanical properties of stainless steel

Regardless of stainless steel plate or heat-resistant steel plate, austenitic steel plate has the best overall performance, with sufficient strength, excellent plasticity and low hardness, which is one of the reasons why they are widely used. Austenitic stainless steel is similar to most other metal materials, its tensile strength, yield strength and hardness increase with the decrease of temperature. Plasticity decreases with decreasing temperature. Its tensile strength increases relatively uniformly in the temperature range of 15~80&2_1.html176;C. More importantly: as the temperature decreases, its impact toughness decreases slowly, and there is no brittle transition temperature. Therefore, stainless steel can maintain sufficient plasticity and toughness at low temperatures.

3.    Physical properties of stainless steel

Comparing 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. Resistivity in ascending order of carbon steel, ferritic, martensitic and austenitic stainless steel. The order of linear expansion coefficient is also similar, austenitic stainless steel is the highest and carbon steel is the smallest. Carbon steel, ferritic and martensitic stainless steel are magnetic, austenitic stainless steel is non-magnetic, but it will produce magnetism when it is cold-work hardened to form a tensite phase transformation, and heat treatment can be used to eliminate this martensitic structure. restore its non-magnetic.

Compared with carbon steel, austenitic stainless steel has the following characteristics:

1.     High cathode ratio, about 5 times that of carbon steel

2.     Large linear expansion coefficient, 40% larger than carbon steel, and as the temperature increases, the value of the linear expansion coefficient also increases correspondingly.

3.     Low thermal conductivity, about 1/3 of carbon steel.