ASME SA572 Grade 55 low alloy steel plates development situation in China

The steel output of China has exceeded 1 billion tons, and the number of steel products is no longer the main contradiction. The contradiction between the unreasonable varieties of steel products is very prominent. The main task of the current steel industry is to improve the market competitiveness of the steel products. Based on the new starting point of sustainable development, to list the development of ASME SA572 Grade 55 low alloy steel plates etc. low alloy steel in the important content of the development strategy.

There is no clear definition between ASME SA572 Grade 55 low alloy steel plates etc. low alloy steel and the carbon steel, the low alloy steel and the alloy steel. In 50s, the low alloy steel has been defined in the world. In general, it means that the total alloy element is less than 3% and the yield strength is above 275Mpa. ASME SA572 Grade 55 low alloy steel plates etc. low alloy steel have good machinability and corrosion resistance. The low alloy steel are always used in hot rolled state and in the shape of profile steel,steel strip, steel plate, tube and so on. In the process of technology development, ASME SA572 Grade 55 low alloy steel plates etc. low alloy steel has changed a lot in terms of alloy content, performance level and delivery status.