The professional SM490A carbon steel plate sheet manufacturer

The addition of Ca element in steel such as SM490A carbon steel plate sheet can refine grain size, partly desulphurize and change the composition, quantity and morphology of non-metallic inclusions. It is similar to that of adding rare earth in steel. It can improve the corrosion resistance, wear resistance, high temperature and low temperature resistance of steel, improve the impact toughness, fatigue strength, plasticity and welding performance of the steel, and increase the cold heading, shock resistance, hardness and contact endurance strength of the steel.

Q420FT steel implements the standard GB/T28410, which corresponds to S420 in EN10025. Q420FT steel plate is often used to make style electric towers. It has excellent functions and a completely neat board surface. SM490A carbon steel plate sheet, Q420FT steel plate is usually delivered in hot rolling, controlled rolling, normalizing rolling, normalizing, TMCP, TMCP+tempering, and the steel plate should be delivered with trimmed edges.

According to the monitoring of the Iron and Steel Association, at the end of October, the China Steel Price Index (CSPI) was 107.34 points, an increase of 1.24 points or 1.17% from the end of last year; the price of CIOPI imported iron ore during the same period was US6.38/ton, an increase of US.86/ton from the previous month, an increase of 28.57%. The price increase of iron ore is significantly greater than that of steel, and the impact on the production costs of steel companies will gradually become apparent, greatly reducing corporate profitability.