ASTM SA588 Grade A Corten Steel Plate

Product Overview

  SA588 Grade A is a structural weathering steel plate developed for superior corrosion resistance and high-strength performance.

  It is primarily used in environments exposed to the elements, where a maintenance-free life cycle and long-term durability are crucial.

  Like other corten steels, SA588 Grade A develops a protective rust-like patina when exposed to atmospheric conditions, reducing the need for protective coatings.

Key Features

• Enhanced Atmospheric Corrosion Resistance

• Minimum Yield Strength of 50 ksi (345 MPa)

• Natural Patina Finish – No Need for Painting

• Low Maintenance and Long Life Cycle

• Weldable and Formable for Structural Applications

Common Applications

• Highway and railway bridges

• Industrial buildings

• Architectural projects and public art

• Containers, planter

Chemical Composition (Typical)

Mechanical Properties

• Yield Strength: ≥ 50 ksi (345 MPa)

• Tensile Strength: 70–95 ksi (485–655 MPa)

• Elongation: ≥ 18% in 8″ (200 mm)

Available Dimensions

• Thickness: 3mm – 100mm

• Width: Up to 3000mm

• Length: Up to 12000mm or as customized

• Processing Services: Cutting, bending, welding, surface treatment

Why Choose SA588 Grade A?

This grade is a reliable and cost-effective solution for long-term, exposed structural applications. With low maintenance requirements and a naturally weather-resistant finish, SA588 Grade A offers excellent value over time for infrastructure and architectural use.