DS Pipe and Steel Supply

A36 Steel Plate

A36 Steel Plate is one of the most common grades of steel used in structural applications. This mild carbon steel grade contains chemical alloys that give it properties such as machinability, flexibility, and strength that are ideal for constructing various structures. The “A36” designation refers to the ASTM (American Society for Testing and Materials) grade of steel, indicating its specific chemical composition and mechanical properties.


A36 steel plates primarily consist of iron as the main element, with small amounts of carbon, manganese, phosphorus, sulfur, and silicon. The carbon content is typically around 0.25% and may vary slightly. The manganese content helps improve the steel’s strength and ductility, while the other elements contribute to its overall performance.


A36 steel plates possess several desirable properties that make them suitable for various applications. These properties include:

  • Strength: A36 steel plates have a relatively high tensile strength, capable of withstanding heavy loads and structural stresses.
  • Ductility: This type of steel exhibits good ductility, allowing it to be formed and shaped without fracturing or losing its structural integrity.
  • Weldability: A36 steel plates are readily weldable, which makes them suitable for fabrication and joining processes.
  • Machinability: A36 steel plates have good machinability, enabling them to be cut, drilled, and shaped easily using common metalworking tools.
  • Corrosion Resistance: While A36 steel is not highly corrosion-resistant compared to stainless steel or some other alloyed steel, it still offers reasonable resistance to atmospheric corrosion.


Due to their favorable properties, A36 steel plates are utilized in a variety of applications, including:

  • Structural Components: A36 steel plates are commonly used to construct buildings, bridges, and other structures that require high strength and stability.
  • Machinery and Equipment: These plates find application in the manufacturing of heavy machinery, such as cranes, bulldozers, and excavators, due to their excellent strength and machinability.
  • Transportation Industry: A36 steel plates are employed in manufacturing truck trailers, railcars, and shipping containers, where their strength and weldability are essential.
  • Support Structures: They are used for fabricating support beams, columns, and frames in industrial facilities and infrastructure projects.