At Esha Steel, we proudly supply high-quality ASTM A588 GR.A/B Corten Steel Sheets and Plates to industries across Kolkata and nationwide. These sheets and plates are engineered to resist atmospheric corrosion and provide long-lasting durability in outdoor and industrial applications. Manufactured to ASTM standards, Esha Steel ensures precise dimensions, consistent quality, and superior performance. Trusted by construction, infrastructure, and architectural sectors, Corten steel sheets and plates combine structural strength with aesthetic appeal, delivering reliable and maintenance-free solutions for long-term outdoor exposure.
ASTM A588 GR.A/B Corten Steel Sheets and Plates are alloyed with copper, chromium, and nickel along with controlled carbon, manganese, phosphorus, sulfur, and silicon. This chemical composition enhances corrosion resistance, weathering capability, and mechanical strength. Mechanically, the plates offer a minimum tensile strength of 485 MPa and yield strength of 345 MPa, along with good elongation and toughness. The steel’s uniform microstructure ensures reliable fabrication, welding, and forming. Over time, Corten steel develops a protective rust-like patina that further improves its resistance to atmospheric corrosion without requiring additional coatings.
| Specifications | ASME SA588 / ASTM A588 |
| Grade | Gr A / Gr B Corten Steel Plates |
| Thickness | from 0.8 mm to 50mm |
| Width | from 750mm to 1500mm |
| Length | up to 12,000mm |
| Type | Weathering Steel / Weather Resistant / Corten Steel |
| Process | Hot-Rolled (HR) |
| Applications | concrete industry, metallurgy, fan industry, coal industry, mining machinery, construction machinery, etc. |
| Grade | C % | Si % | Mn % | P % | S % | Cr % | V % | Ni % | Cu % |
| Grade A | 0.19 | 0.30-0.65 | 0.80-1.25 | 0.04 | 0.05 | 0.40-0.65 | 0.02-0.10 | 0.40 | 0.25-0.5 |
| Grade B | ≤0.20 | 0.15-0.50 | 0.75-1.35 | 0.040 | 0.050 | 0.40-0.70 | 0.01-0.10 | ≤0.50 | ≤0.50 |
| Grade | Thickness | Yield Strength ReH[N/mm2]transv.min | TensileStrength Rm[N/mm2]transv |
| ASTM A588 | 0mm-100mm | 340 MPa | 480 MPa |
| 102mm-127mm | 320 MPa | 460 MPa | |
| 127mm-203mm | 290 MPa | 430 MPa |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| THICKNESS | WIDTH | LENGTH | |
| A588 Steel | 3/16″ – 8″ | 48″ – 120″ | Up to 480″ |
| Width | Length | (lbs/ft) Weight |
| 48.00″ | 120.00″ | 15.0315 |
| 60.00″ | 120.00″ | 10.0210 |
| 48.00″ | 120.00″ | 20.0420 |
| 48.00″ | 120.00″ | 10.0210 |
ASTM A588 GR.A/B Corten Steel Sheets and Plates are widely used in bridges, building facades, outdoor sculptures, industrial structures, and storage tanks where atmospheric corrosion resistance is critical. They are ideal for architectural projects, infrastructure works, power plants, and heavy machinery components exposed to weathering conditions. The steel’s combination of structural strength and corrosion resistance makes it perfect for outdoor structures and decorative applications that require minimal maintenance. Fabricators and engineers value Corten steel for its long-term durability, aesthetic appeal, and reliable performance in construction, infrastructure, and industrial environments exposed to harsh weather and atmospheric conditions.
Esha Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kolkata India.
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