Low Alloy Plate

The general term for steel plates with an alloy content lower than 3.5%
Low alloy plates are a general term for steel plates with an alloy content of less than 3.5% and fall within the category of low alloy steel. Its carbon content usually does not exceed 0.20%, and it is added with elements such as manganese, niobium, titanium and vanadium. It has a yield strength of over 300MPa, as well as good toughness, weldability and corrosion resistance. It is widely used in Bridges, ships, high-pressure vessels and other fields. Typical grades include Q345B and its upgraded version Q355B. The microstructure of the material in use is mostly a mixed structure of ferrite and pearlite or sorbonite