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Technical Specifications
Product Overview
COR-TEN Weathering Steel Plate is a high-strength, low-alloy structural steel that forms a stable rust-like appearance when exposed to weather conditions. This atmospheric corrosion-resistant steel develops a protective oxide layer that eliminates the need for painting in many applications.
Key Features:
- Superior atmospheric corrosion resistance
- Self-protecting rust patina formation
- High strength-to-weight ratio
- Excellent weldability and formability
- Maintenance-free in most environments
- Distinctive weathered appearance
Manufacturing Process: Hot rolled using controlled cooling technology to achieve optimal mechanical properties and uniform microstructure for consistent weathering characteristics.
Applications: Architectural facades, bridges, railway cars, shipping containers, outdoor sculptures, building structures, transmission towers, and industrial equipment exposed to atmospheric conditions.
🧪 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 | - | 0.06 | ≤ 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) | - | 150-200 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | - | 85-95 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 200 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | 27 J min | 40 J | ASTM E23 | -18°C |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 7.85 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1450-1520 | °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 | Ferromagnetic | - | Room Temp | ASTM A342 |
| Curie Temperature | 770 | °C | - | Magnetic analysis |
📏 Product Specifications
| Specification | Available Range | Standard Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Thickness | 3mm - 100mm | 6-25mm | Yes | ±0.3mm |
| Width | 1000mm - 3000mm | 1500mm, 2000mm | Yes | ±5mm |
| Length | 2000mm - 12000mm | 6000mm | Yes | +50mm/-0mm |
| Surface Finish | Hot Rolled, Pickled | Hot Rolled | Yes | Ra ≤ 6.3μm |
| Edge Condition | Mill Edge, Cut Edge | Mill Edge | Both | ASTM standard |
| Flatness | ≤ 10mm/m | ≤ 5mm/m | Improved | ASTM A6 |
| Standards Compliance | ASTM A588, A242, EN 10155 | A588 | Multiple | Full compliance |
| Weathering Grade | Grade A, B, C | Grade A | Yes | 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 แผ่นเหล็กคอร์เทนที่ทนต่อสภาพอากาศ
Self-Protecting Surface Formation
The manufacturing process creates a unique metallurgical structure that enables the steel to develop a protective patina layer when exposed to weather cycles, eliminating the need for additional protective treatments during production.
Controlled Alloy Integration
Precise manufacturing control of alloying elements during the steel plate production ensures optimal chemical composition, resulting in superior weathering characteristics and consistent performance across the entire surface area.
Advanced Rolling Technology
State-of-the-art hot rolling processes create uniformly thick plates with excellent flatness and surface quality, while maintaining the specific microstructure required for proper weathering performance.
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