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Technical Specifications
Product Overview
COR-TEN Weathering Steel Sheet is a high-strength, low-alloy structural steel that forms a stable rust-like appearance when exposed to weather conditions. This self-protecting patina eliminates the need for painting and provides excellent atmospheric corrosion resistance.
Key Features:
- Superior atmospheric corrosion resistance - up to 8 times better than carbon steel
- Self-protecting patina formation eliminates painting requirements
- High strength-to-weight ratio for structural applications
- Distinctive weathered appearance for architectural aesthetics
- Long-term cost effectiveness due to minimal maintenance
Manufacturing Process: Hot rolled using controlled chemistry to achieve optimal weathering characteristics. The steel develops its protective patina through controlled oxidation over 18-36 months of weather exposure.
Applications: Architectural facades, bridges, railway cars, shipping containers, outdoor sculptures, structural frameworks, transmission towers, and marine applications where painting is impractical or undesirable.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM A588 Requirement |
|---|---|---|---|---|
| Carbon (C) | - | 0.19 | 0.12 | ≤ 0.19 |
| Manganese (Mn) | 0.75 | 1.35 | 1.00 | 0.75-1.35 |
| Phosphorus (P) | 0.04 | - | 0.07 | ≤ 0.04 |
| Sulfur (S) | - | 0.05 | 0.03 | ≤ 0.05 |
| Silicon (Si) | 0.15 | 0.50 | 0.30 | 0.15-0.50 |
| Nickel (Ni) | - | 0.65 | 0.40 | ≤ 0.65 |
| Chromium (Cr) | 0.40 | 0.65 | 0.50 | 0.40-0.65 |
| Copper (Cu) | 0.25 | 0.40 | 0.35 | 0.25-0.40 |
| Vanadium (V) | 0.02 | 0.10 | 0.05 | 0.02-0.10 |
| Iron (Fe) | Balance | Balance | 97.2 | Balance |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 485 MPa min | 520 MPa | ASTM A370 | Room Temp |
| Yield Strength (0.2%) | 345 MPa min | 380 MPa | ASTM A370 | Room Temp |
| Elongation | 18% min | 22% | ASTM A370 | Room Temp |
| Hardness (Brinell) | - | 160 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | - | 85 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 200 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | 27 J min | 35 J | ASTM E23 | -18°C |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 7.85 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1460-1520 | °C | - | DSC Analysis |
| Thermal Conductivity | 46 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 460 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 12.0 | μm/m·K | 0-100°C | ASTM E228 |
| Electrical Resistivity | 200 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | Magnetic | - | Room Temp | ASTM A342 |
| Corrosion Rate | 0.05-0.10 | mm/year | Atmospheric | ASTM G101 |
📏 Product Specifications
| Specification | Available Range | Standard Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Thickness | 1.5mm - 100mm | 3-12mm | Yes | ±0.1mm |
| Width | 1000mm - 2500mm | 1500mm | Yes | ±5mm |
| Length | 2000mm - 12000mm | 6000mm | Yes | ±10mm |
| Surface Finish | Hot Rolled, Pickled | Hot Rolled | Yes | Ra ≤ 6.3μm |
| Edge Condition | Mill Edge, Cut Edge | Mill Edge | Both | ASTM standard |
| Flatness | ±3mm/m | ±2mm/m | Improved | ASTM A6 |
| Standards Compliance | ASTM A588, A242, A606 | A588 | Multiple | Full compliance |
| Weathering Grade | Grade A, Grade B | Grade A | Both | Chemical verified |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Bundles, Crates, Containers | Bundles | Custom | Export standard |
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Our Advantages in Processing แผ่นเหล็ก COR-TEN ที่ทนต่อสภาพอากาศ
Controlled Weathering Process
Advanced manufacturing techniques ensure uniform development of the protective patina layer across the steel surface, creating a consistent rust-like appearance while maintaining structural integrity through precise alloy composition control.
High-Strength Sheet Formation
Specialized rolling and heat treatment processes produce sheets with exceptional mechanical properties, achieving optimal thickness uniformity and surface quality while maintaining the material's weathering characteristics.
Precision Alloy Integration
Sophisticated alloying process incorporates specific quantities of copper, chromium, and nickel during steel production, ensuring the material develops the self-protecting oxide layer essential for long-term corrosion resistance.
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