What is JIS carbon steel SM490YB CS plate equivalent ASTM steel

After the steel plate is produced from the original factory, it will pass through a series of transportation and storage links and then be delivered to the processing workshop. During this period of time, the steel plate surface will contact with the air continuously, which will inevitably produce a layer of oxide skin. The oxide skin is a difficulty in the treatment process. It has high melting point, is not easy to burn and dissolve, increases preheating time, reduces cutting speed. Therefore, the surface of the JIS carbon steel SM490YB CS plate plate should be derusted before cutting.

The effect of alloy elements of JIS carbon steel SM490YB CS plate, Q345B alloy steel plate on tempering transformation: improving the tempering stability. The alloying elements delay the decomposition of martensite and the transformation of residual austenite during the tempering process. Increasing the recrystallization temperature of ferrite makes it difficult for carbides to aggregate and grow, so the resistance of steel to temper softening is improved, that is, the tempering stability of steel is improved.

Previously, the coke market was both prosperous in supply and demand, and steel mills' blast furnaces were limited by the environmental protection restrictions in autumn and winter. The operating rate continued to be high, and the demand for coke remained unabated. With the continuous advancement of the coking capacity reduction process, the price of metallurgical coke will be in a price increase channel for a long time, and the mismatch of supply and demand is difficult to alleviate in the short term.

Online Industrial Metal Supply, JIS carbon steel SM490YB CS plate Direct Factory Price 55*2500*12000, 55*2500*12000, 56*1890*12000, 50*2600*7940, 68*2300*3500, 77*1300*12200, 55*1600*6000, 50*1700*6000, 81*2010*3000, 70*2500*12000, 80*2020*7932, 68*3030*11300, 80*1150*3950, 70*2500*12000, 65*2500*10350, 80*1655*7260, 80*1000*3950, 90*3120*9800, 80*2500*12000, 120*3030*7400, 85*2800*3400, 100*2400*10000, 140*2300*11500, 148*2780*6930.