Domestic A709 grade 50 carbon steel plate sheet prices generally fell yesterday

Bridge steel plates are steel plates specially used to build railway or highway bridges. It is required to have high strength, toughness and bear the load and impact of rolling stock, and have good fatigue resistance, certain low temperature toughness and atmospheric corrosion resistance. The steel A709 grade 50 carbon steel plate sheet for tie-welding bridges should also have good welding performance and low notch sensitivity.

The advantages of A709 grade 50 carbon steel plate sheet, medium and thick boiling steel plate: The surface is relatively smooth, the quality is good, and it is easy to process. Because medium and thick boiling steel plate does not have concentrated shrinkage holes, the amount of deoxidizer is small, and boiling steel plate price is lower than other steel plates. Disadvantages of medium and thick boiling steel plate: it has a lot of gas content and impurities, it is not easy to weld, and its bearing capacity is worse than other steel plates, so it is not suitable for parts that need to bear gravity.

Well known Chinese steel material supplier A709 grade 50 carbon steel plate sheet products5.5*2490*11000,6*3000*11000, 5.5*2560*8100, 6*3000*8500, 8*2600*10000, 10*2200*12000, 5.5*2490*9500, 9*2100*10050, 6*2690*8600, 8*1800*4700, 10*2200*12000, 6*1800*6000, 6*3000*10000, 6*2860*13000, 10*2500*12000, 6*3000*7400, 6*2960*8500, 6*2860*6300, 10*2020*4900, 6*3000*8800, 6*1700*6000, 8*2600*10000.

Oxygen is a harmful element in A709 grade 50 carbon steel plate sheet steel. With the increase of oxygen content, the strength of A709 grade 50 carbon steel plate sheet steel increased, but the plasticity, especially the toughness, decreased significantly, and the weldability became worse. The presence of oxygen causes hot brittleness of A709 grade 50 carbon steel plate sheet steel.