Sell St52-3 HSLA steel plate 60mm heavy plate with cutting service

In recent years, steel structure engineering has been developing to large-scale, lightweight and high parameter, such as large-span bridges, large hydropower stations, heavy engineering machinery, etc. This requires that St52-3 HSLA steel plate, structural steel has higher strength, better toughness, plasticity and welding properties, and Q690CF steel plate greatly meets these conditions. Q690CF steel plate is a kind of steel with bending strength higher than 690MPa and low welding crack sensitivity.

The fake and inferior St52-3 HSLA steel plate, steel plates have no metallic luster and are light red or similar to pig iron for two reasons. 1. Its blank is adobe. 2. The rolling temperature of counterfeit and inferior materials is not standard, and their steel temperature is visually inspected. In this way, rolling cannot be carried out in the specified austenite area, and the performance of the steel plate will naturally not meet the standard.

The difference between cold rolled steel sheet and hot rolled steel plate. The carbon content of St52-3 HSLA steel plate, hot rolled steel plate is slightly higher than that of cold rolled steel sheet. In the case of little difference in composition, the density of cold rolled steel sheet and hot rolled steel plate is the same. Hot rolled steel plate has characteristics of low hardness, easy processing and good ductility. Cold rolled steel sheet has high hardness, and it is relatively difficult for processing. But it is not easy to deform and has high strength. Hot rolled steel plate can be made into alloy steel plate by adding other elements, and its properties are also excellent compared with other high-quality steel plates.