Corten Steel A588 GrB Plate is a high-strength low-alloy weathering steel designed to form a stable, protective rust layer when exposed to the atmosphere, significantly reducing corrosion compared to conventional carbon steel. Part of the ASTM A588 series, GrB is valued for its balance of durability, formability, and resistance to atmospheric corrosion, making it ideal for structures requiring minimal maintenance in harsh environments.

 

Mechanical Properties

Property	Typical Values for A588 GrB
Yield Strength	≥345 MPa (50 ksi)
Tensile Strength	485–620 MPa (70–90 ksi)
Elongation at Break	≥21% (for thickness ≤16 mm)
Impact Toughness	Charpy V-notch test at -29°C (-20°F)

 

 

 

 

 

Physical Characteristics

Appearance: Develops a dark, adherent rust patina over time, eliminating the need for paint.

Thickness Range: Typically 8 mm to 200 mm (custom sizes available).

Surface Finish: Mill finish (standard), or processed via sandblasting, galvanizing, or coating (if required for specific aesthetics).

Fabrication & Machining

Weldability: Suitable for standard welding processes (MIG, TIG, stick welding). Preheating may be required for thick sections.

Formability: Can be bent, cut, and punched using conventional metalworking tools.

Tolerance: Typically ±0.05–0.1 mm, depending on thickness and processing requirements.

 

 

 

 

 

 

 

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Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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