A516 Grade 65 is a pressure vessel quality carbon steel plate widely used in the fabrication of welded pressure vessels and industrial storage equipment. The grade provides a balanced combination of strength, toughness, and processing performance, making it suitable for refineries, petrochemical plants, power stations, and industrial processing facilities. Its excellent weldability and dependable mechanical properties support efficient manufacturing while maintaining long‑term service reliability.

Chemical Composition

A516 Grade 65 is produced with controlled carbon and manganese levels to achieve higher strength than Grade 60 while maintaining good fabrication characteristics. Silicon is added to improve steel quality and deoxidation efficiency, while phosphorus and sulfur are kept at low levels to support welding performance and structural integrity. The composition is optimized for pressure‑containing applications requiring dependable performance across a wide thickness range.

Mechanical Properties

A516 Grade 65 provides a minimum yield strength of 240 MPa (35 ksi) and a tensile strength range of 450–585 MPa (65–85 ksi). The grade offers good ductility, reliable notch toughness, and stable performance under moderate‑temperature operating conditions. These characteristics make it suitable for pressure vessels and other critical industrial equipment requiring long service life.

Size Range (Website 5 Standard Template)

Thickness: 3–150 mm
Width: 1220–4200 mm
Length: 5000–18000 mm

Stock & Processing Services

Cutting • Beveling • Welding preparation • Heat treatment • Custom fabrication for pressure vessel projects

Applications

• Pressure vessels and separators
• Storage tanks and process tanks
• Boilers and steam equipment
• Petrochemical processing facilities
• Industrial pressure systems
• Power generation equipment