Introduction Of Threaded Rods And Eye Bolts Expansion
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Posted by weigao fasteners - Filed in Business - #Hexagon Flange Bolt， Threaded Rods And Eye Bolts - 481 views
Regardless of whether stainless steel screws or heat-resistant steel plates, austenitic steel plates have the best overall performance. They have sufficient strength, excellent plasticity and low hardness. This 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 as the temperature decreases; the plasticity decreases as the temperature decreases. Its tensile strength increases evenly within the temperature range of 15~80°C. More importantly, as the temperature decreases, the impact toughness of Threaded Rods And Eye Bolts decreases slowly, and there is no brittle transition temperature. Therefore, stainless steel can maintain sufficient plasticity and toughness at low temperatures.
Comparing the physical performance data 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 is according to carbon steel, ferritic type, martensitic type The order of linear expansion coefficient is similar to that of austenitic stainless steel. Austenitic stainless steel is the highest and carbon steel is the smallest; carbon steel, ferritic and martensitic stainless steel are magnetic, and austenitic stainless steel is non-magnetic. , But it will produce magnetism when it is cold-worked and hardened to form a transformation into a stenite, and heat treatment can be used to eliminate this martensite structure and restore its non-magnetic. Compared with carbon steel, austenitic stainless steel has the following characteristics:
1) High cathode rate, about 5 times that of carbon steel.
2) Large linear expansion coefficient, 40% larger than that of carbon steel, and as the temperature increases, the value of Hexagon Flange Bolt linear expansion coefficient increases accordingly.
3) Low thermal conductivity, about 1/3 of carbon steel.