ASTM SA588 Grade B Corten Steel Plate

Product Overview

SA588 Grade B is another variant in the SA588 weathering steel family, offering slightly different mechanical properties and chemical composition compared to Grade A.

It’s engineered for use in environments where corrosion resistance and high strength are required.

Ideal for structural use in bridges, buildings, and other outdoor steel applications, this grade ensures durability with a self-protective oxide layer that minimizes the need for painting or regular upkeep.

Key Features

• Superior Corrosion Resistance in Harsh Conditions

• High Tensile Strength and Structural Integrity

• Environmentally Friendly – No Need for Paint or Coating

• Ideal for Bridges, Buildings, and Outdoor Structures

Typical Applications

• Structural bridge components

• Corten Fence

• Corten steel facades and panels

• Transportation and industrial infrastructure

Chemical Composition (Typical)

Mechanical Properties

• Yield Strength: ≥ 42 ksi (290 MPa)

• Tensile Strength: ≥ 70 ksi (485 MPa)

• Elongation: ≥ 21% in 8″ (200 mm)

(Note: The yield strength of Grade B is slightly lower than Grade A but may offer better ductility depending on the application.)

Available Dimensions

• Thickness: 3mm – 100mm

• Width: Up to 3000mm

• Length: Up to 12000mm

• Processing available: laser cutting, CNC bending, welding, rust-pre-treatment, etc.

Why Choose SA588 Grade B?

SA588 Grade B provides long-lasting performance in outdoor environments while offering flexibility in fabrication. Its excellent strength-to-weight ratio, corrosion resistance, and low maintenance make it a preferred material for modern engineering and architectural solutions.