The common A573gr.70 carbon-manganese-silicon steel plate specifications

BBN steel a professional cold rolled coils and galvanized steel sheets supplier in China. DC51D+AZ 55% AI-Zn galvanized steel sheet for appliances nominal thickness: 0.22~2.0; width: 700~1300; length of steel plate: 1000~6000; Inside diameter of steel strip: 508mm. It is mainly used for cold forming. With the alloy galvanized coating, the recommended nominal coating weight is 30/30, 40/40, 50/50, 60/60, 75/75, 90/90g/m².

Shipbuilding steel plates are used to manufacture the hull of marine and inland ships. High strength, plasticity, toughness, cold bending performance, welding performance and corrosion resistance are required for shipbuilding steel plates. Boiler steel plates are used to manufacture various boilers and important accessories. As the boiler steel plate works under medium temperature (below 350℃) and high pressure, it is also subject to impact, fatigue load and water and gas corrosion. The A573gr.70 carbon-manganese-silicon steel plate, boiler steel plate is required to ensure a certain strength and have good welding and cold bending properties.

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the A573gr.70 carbon-manganese-silicon steel plate quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After A573gr.70 carbon-manganese-silicon steel plate quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

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