High-strength weathering (Corten) steel plate manufactured to the ASTM A588 Grade A specification for structural uses where improved atmospheric corrosion resistance and weight savings are required.
Key features
- Conforms to ASTM A588 Grade A for hot-rolled, low-alloy structural steel.
- Designed for atmospheric corrosion resistance when exposed in the open air (suitable for unpainted/bare finish in many environments).
- Suited for welded bridges, buildings and other structural applications where durability and reduced maintenance are important.
- Supplied as hot-rolled plates and can be produced into shapes and cut-to-size plates per order requirements.
Mechanical properties (as supplied)
| Thickness range | Minimum tensile strength | Minimum yield strength | Minimum elongation |
|---:|---:|---:|---:|
| 100 mm or under | 485 MPa | 345 MPa | 21% (in 50 mm)
| 100 mm – 125 mm | 460 MPa | 315 MPa | 18% (in 50–200 mm)
| 125 mm – 200 mm | 435 MPa | 290 MPa | 18% (in 50–200 mm)
Notes on supply and use
- Typical supply form: hot-rolled plates (flat-rolled), also available in fabricated shapes per customer specification.
- Thicknesses covered by this specification extend up to 200 mm inclusive.
- Intended primarily for welded structural components; design and welding procedures should follow applicable codes and best practices for weathering steels to ensure expected corrosion performance.
Ordering information
Provide the following in your RFQ to expedite processing: required plate dimensions (length, width, thickness), quantity, surface finish (if any), required certifications or test reports, and delivery terms. Pricing and lead time depend on order size, plate dimensions and any additional processing (cutting, drilling, welding).
If you need additional technical data (chemical composition, mechanical test reports, or fabrication recommendations), include that request in your RFQ.
