The steel plates for SA302GrC boilers must withstand different pressures and strengths due to the manufactured containers. Generally, the normal pressure is 314MPa or higher, and the working temperature is often between -20°C and 450°C. According to the working conditions and processing requirements of the vessel, the steel plate must have good cold bending and welding performance, good plasticity and toughness, and high temperature short-term strength or long-term strength performance.
Since it was established in 2000. Based on the domestic rich A573 grade 70 plate product resources and the great steel demand of the international market, our A573 grade 70 plate service has already spread many countries in Europe , America, Southeast Asia, Middle East, South America, Africa, etc, and we have won an outstanding reputation for its professional exporting steel products
Steel plate cutting and machining parts are mainly used in machinery manufacturing, ships building, landscape building, petroleum storage tanks, steel structures and mold processing industries. We can provide finished and semi-finished A573 grade 70 plate steel plates products according to the client needs. Realize the service from product drawings-steel plate procurement-steel plate cutting-steel plate processing A573 grade 70 plate steel plate distribution services, so as to save customers manpower and material resources.
With the increase of temperature, the yield limit of A573 grade 70 plate will decrease monotonically, but the tensile strength of A573 grade 70 plate will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of A573 grade 70 plate. Near the blue brittleness temperature, the A573 grade 70 plate strength increases and the plasticity decreases. The elongation and section shrinkage of A573 grade 70 plate increase with the increase of temperature, but there is a low peak at the blue brittleness temperature. The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃. The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher.
Our company will accept the product quality objection registration record, pass it to the A573 grade 70 plate production unit and relevant departments, and timely coordinate the supervision of product A573 grade 70 plate quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.
