Corten Steel Sheets
Corten (Weathering) Steel Sheets
Corten Steel, also known as Weathering Steel, is a high-strength, low-alloy steel that develops a protective rust-like patina when exposed to atmospheric conditions. This oxidation process eliminates the need for painting, making Corten Steel ideal for structural applications exposed to harsh weather conditions. It is commonly used in architectural facades, bridges, shipping containers, and outdoor sculptures due to its corrosion-resistant properties and aesthetic appeal.
Corten Steel is available in two primary grades:
- Corten A (ASTM A242) – Suitable for architectural applications and lighter structures.
- Corten B (ASTM A588) – Used in heavier structural applications due to its superior mechanical properties.
| Property | Details |
|---|---|
| Product Name | Corten Steel Sheets |
| Material | Weathering Steel (Corten A, Corten B) |
| Standard | ASTM A588, ASTM A242, EN 10025-5, JIS G3125 |
| Grades | Corten A, Corten B, S355J2W, S355K2W, A588 Gr.A/B |
| Thickness | 2mm -460mm |
| Width | 900mm – 32000mm |
| Length | 1000 mm – 12000 mm (Custom lengths available) |
| Surface Finish | Rusted (Pre-weathered), Mill Finish, Oiled, Coated |
| Corrosion Resistance | Excellent atmospheric corrosion resistance |
| Key Features | High strength, Self-healing patina, Low maintenance, Longevity |
| Applications | Architectural structures, Bridges, Facades, Landscaping, Industrial usage |
| Weldability | Good – Compatible with standard welding methods |
| Forming & Machining | Can be cut, welded, and shaped easily |
| Packaging | Standard seaworthy packaging or as per customer request |
| Supply Condition | Hot Rolled, Cold Rolled, Weathered |
| Customization | Available in various sizes, shapes, and surface treatments |
Corton Steel Grade
- Corten A (ASTM A242)
- Corten B (ASTM A588)
- ASTM A606 Type 4
- ASTM A847
ASTM A588
ASTM A242
JIS G3125
Corton A & B Chemical Composition
| Element | Corten A (%) | Corten B (%) |
|---|---|---|
| Carbon (C) | ≤ 0.12 | ≤ 0.16 |
| Manganese (Mn) | 0.20 – 0.50 | 0.30 – 0.50 |
| Phosphorus (P) | 0.07 – 0.15 | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 | ≤ 0.05 |
| Silicon (Si) | 0.25 – 0.75 | 0.25 – 0.40 |
| Copper (Cu) | 0.25 – 0.55 | 0.30 – 0.40 |
| Chromium (Cr) | 0.40 – 0.65 | 0.40 – 0.65 |
| Nickel (Ni) | ≤ 0.65 | ≤ 0.40 |
| Vanadium (V) | – | 0.02 – 0.10 |
Corton A & B Mechanical Properties
| Property | Corten A | Corten B |
|---|---|---|
| Yield Strength (MPa) | ≥ 345 | ≥ 345 |
| Tensile Strength (MPa) | 470 – 630 | 485 – 620 |
| Elongation (%) | ≥ 20 | ≥ 19 |
Corton A & B Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1,375 – 1,400°C |
| Thermal Conductivity | ~ 37 W/m·K |
| Electrical Resistivity | ~ 0.55 µΩ·m |
Corton A & B Dimensions
Thickness
- Corten steel sheets can be 0.8 mm to 50 mm thick.
- Corten steel sheets can be 2 mm to 460 mm thick.
- Corten steel sheets can be 22 GA, 20 GA, 18 GA, 16 GA, 14 GA, 12 GA, 11 GA, 10 GA, 8 GA, 3/16″ GA, 1/4″ GA, 3/8″ GA, 1/2″ GA, or 3/4″ GA.
Width
- Corten steel sheets can be 750 mm to 1500 mm wide.
- Corten steel sheets can be 900 mm to 3200 mm wide.
Length
- Corten steel sheets can be up to 12,000 mm long.
- Corten steel sheets can be 2, 2.44, 3, 6, 8, or 12 meters long.
- Other specifications
- Corten steel sheets can be ASTM A242, A588, or A606-4.
- Corten steel sheets can be Corten A, Corten B, S355J0WP, S355J0W, S355J2W, A588 Grade A, B, C, or A242 Type 1.
Application
1. Architectural & Structural Applications
- Building Facades & Cladding – Used for modern, rustic, and industrial-style exteriors.
- Bridges & Walkways – Provides durability with a unique, weathered look.
- Sculptures & Monuments – Preferred for artistic installations due to its natural patina.
2. Industrial & Infrastructure Uses
- Shipping Containers – High resistance to marine environments.
- Railway Cars & Coaches – Used for durability and corrosion resistance.
- Highway Guardrails & Sound Barriers – Withstands environmental exposure.
3. Outdoor & Landscaping Applications
- Garden Planters & Retaining Walls – Enhances aesthetic appeal with longevity.
- Fencing & Gates – Rustic appearance with minimal maintenance.
- Outdoor Furniture & Signages – Weather-resistant and stylish.
4. Energy & Marine Industry
- Oil & Gas Industry – Used in offshore platforms and storage tanks.
- Shipbuilding – Provides long-term resistance to seawater exposure.