Our company has a large number of weather-resistant steel, container steel plate, boiler steel plate, ship steel plate, acid-resistant steel plate, wear-resistant plates, high-profile steel, and pipeline steel plates in stock. We will provide you with fast service at a preferential price.
A514 grade B QT steel plate, St52-3 steel is a low alloy, high strength structural steel which can be readily welded to other weldable steel. St52-3 steel's mechanical properties is yield strength more than 355 MPa, tensile strength 490-630Mpa. For St52-3 steel, the C element content is 0.24%, the Si element content is 0.55% max, the Mn element content is 1.60% max, the P element content is 0.045% max, the S element content is 0.045% max.
After extrusion, the A514 grade B QT steel plate tube shall be removed for sizing. The sizing machine uses a cone-shaped bit to rotate into the steel embryo at high speed to drill holes to form steel pipes. The inner diameter of the steel pipe is determined by the outer diameter length of the drill bit of the sizing machine. After sizing, the steel pipe will enter the cooling tower and be cooled by water spray. After cooling, the steel pipe will be straightened. After straightening, the steel pipe is sent to the metal flaw detector (or hydraulic test) by the conveyor belt for internal flaw detection.
After twenty years of efforts, the company has completed the steel plates production process and complete testing equipment from smelting, rolling, drawing, heat treatment to A514 grade B QT steel plate full material. Large-scale production, intensive, and unremitting research and development and innovation make our products maintain long-term vitality. In early 2008, the company established the Ministry of foreign trade, and our A514 grade B QT steel plate steel plate products are now exported to the South Asia, the Middle East, Europe and the United States.
