ASTM A588 Grade B Corten Steel Plate

Product Overview

ASTM A588 Grade B is a high-strength, low-alloy structural steel with atmospheric corrosion resistance.

This grade is specifically engineered for applications requiring enhanced durability and strength in outdoor or exposed environments.

Over time, it develops a protective oxide layer, or “patina,” which helps to prevent further corrosion, making it an ideal material for construction, bridges, architecture, and industrial applications.

Key Features

• Excellent Weather Resistance: Forms a stable, rust-like appearance after exposure to the weather, which acts as a protective barrier against further corrosion.

• High Strength: Minimum yield strength of 50 ksi (345 MPa), offering increased strength compared to standard carbon steels.

• Low Maintenance: The natural patina eliminates the need for painting or coating in most environments.

• Sustainable Material: Reduces the need for maintenance and painting, contributing to long-term environmental and economic sustainability.

Typical Applications

• Bridge and highway structures

• Architectural facades and building cladding

• Outdoor sculptures and public art installations

• Industrial equipment and storage containers

Chemical Composition (Typical)

Note: Actual values may vary slightly depending on production specifications.

Mechanical Properties

• Yield Strength: ≥ 50 ksi (345 MPa)

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

• Elongation: ≥ 18% in 8″ (200 mm)

Available Sizes

• Thickness: 3mm – 100mm

• Width: Up to 3000mm

• Length: Up to 12000mm or customized

Cutting, bending, drilling, welding, and surface treatments can be provided according to customer requirements.

Why Choose Us

We supply ASTM A588 Grade B weathering steel plates with mill certification and full traceability. Our products are widely used in outdoor and architectural applications across North America, Europe, and Australia. With a strong focus on quality, fast delivery, and customized service, we are your trusted partner in sourcing weather-resistant steel solutions.