A516 Grade 70 is the most widely specified pressure vessel quality carbon steel plate for welded vessels and industrial storage equipment. The grade combines dependable strength, good notch toughness, and excellent fabrication characteristics, making it suitable for pressure vessels, process tanks, heat‑processing equipment, and boiler applications. Its balanced mechanical properties and broad industry acceptance make it a preferred material for petrochemical, oil and gas, energy, and industrial processing projects.

Chemical Composition

A516 Grade 70 is manufactured with controlled carbon and manganese levels to achieve higher strength while maintaining weldability. Silicon is added to improve deoxidation and structural consistency, while phosphorus and sulfur are restricted to low levels to support fabrication quality and reliable welded performance. The composition is designed to provide a balance of strength, toughness, and processing efficiency.

Mechanical Properties

A516 Grade 70 provides a minimum yield strength of 260 MPa (38 ksi) and a tensile strength range of 485–620 MPa (70–90 ksi). The material offers good ductility and dependable toughness, supporting pressure‑containing applications where long‑term reliability is required. Its mechanical performance makes it suitable for moderate‑temperature service across a wide range of fabrication thicknesses.

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 units
• Oil and gas facilities
• Industrial pressure systems