Introduction to Q355 low alloy steel plate

Q355 low alloy steel plate

Q355 low alloy steel plate is a new type of high strength, low alloy structural steel plate with good mechanical properties and corrosion resistance. It is composed of carbon, silicon, manganese, phosphorus, sulfur and other elements, and is made through a special heat treatment process. Q355 low alloy steel plate is widely used in construction, bridges, ships, machinery manufacturing and other fields. Its unique properties make it an ideal choice to replace traditional steel.

Composition and properties

The main components of Q355 low alloy steel plate are carbon, silicon, manganese, phosphorus and sulfur. Among them, the carbon content is low, which can improve the strength and hardness of the steel plate while maintaining good weldability and processability. The addition of silicon and manganese can enhance the corrosion resistance and stress corrosion resistance of steel plates. Lower levels of phosphorus and sulfur reduce steel plate brittleness and susceptibility to hot cracking.

Q355 low alloy steel plate has high yield strength and tensile strength, excellent plasticity and toughness, as well as good wear resistance and corrosion resistance. It also has good weldability and processability, and can meet the processing needs of various complex shapes.

Application fields

Q355 low alloy steel plate is widely used in many fields. In the construction industry, it is often used to make steel structures, bridges, stairs, roofs, etc. In the field of shipbuilding, Q355 steel plates are used to manufacture hulls, decks and other structural components. In the machinery manufacturing industry, it is often used to manufacture heavy machinery equipment and construction machinery.

Q355 low alloy steel plate is also widely used in the energy industry, automobile manufacturing, petrochemical industry, metallurgy and other fields. Its high strength and corrosion resistance make it ideal for use in a variety of harsh environments.