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Technical Specifications
Product Overview
Hot Rolled Steel Unequal Leg Angle is manufactured from high-quality carbon steel through hot rolling process, providing excellent structural strength and versatility. These L-shaped structural sections feature two legs of different lengths, making them ideal for asymmetrical load applications and specialized construction requirements.
Key Features:
- High strength-to-weight ratio for efficient structural design
- Excellent weldability and machinability
- Cost-effective solution for structural applications
- Asymmetrical design for specialized load distribution
- Consistent dimensional accuracy and straightness
Manufacturing Process: Hot rolled from quality carbon steel billets using precision rolling mills, ensuring consistent cross-sectional properties and dimensional accuracy throughout the length.
Applications: Building construction, bridge construction, transmission towers, industrial frameworks, machinery supports, bracing systems, architectural applications, and general structural engineering where unequal load distribution is required.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM A36 Requirement |
|---|---|---|---|---|
| Carbon (C) | - | 0.26 | 0.18 | ≤ 0.26 |
| Manganese (Mn) | 0.80 | 1.20 | 0.95 | 0.80-1.20 |
| Silicon (Si) | 0.15 | 0.40 | 0.25 | 0.15-0.40 |
| Phosphorus (P) | - | 0.040 | 0.025 | ≤ 0.040 |
| Sulfur (S) | - | 0.050 | 0.030 | ≤ 0.050 |
| Copper (Cu) | - | 0.20 | 0.12 | ≤ 0.20 |
| Chromium (Cr) | - | 0.30 | 0.15 | ≤ 0.30 |
| Nickel (Ni) | - | 0.30 | 0.15 | ≤ 0.30 |
| Iron (Fe) | Balance | Balance | 98.2 | Balance |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 400-550 MPa | 450 MPa | ASTM A370 | Room Temp |
| Yield Strength | 250 MPa min | 280 MPa | ASTM A370 | Room Temp |
| Elongation | 20% min | 25% | ASTM A370 | Room Temp |
| Hardness (Brinell) | - | 130 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | - | 75 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 200 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | - | 80+ J | ASTM E23 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 7.85 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1510-1540 | °C | - | DSC Analysis |
| Thermal Conductivity | 50.2 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 460 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 11.7 | μm/m·K | 0-100°C | ASTM E228 |
| Electrical Resistivity | 170 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | High | μ/μ₀ | Room Temp | ASTM A342 |
| Curie Temperature | 770 | °C | - | Magnetic |
📏 Product Specifications
| Specification | Available Range | Standard Length | Custom Available | Tolerance |
|---|---|---|---|---|
| Long Leg Size | 25mm - 200mm | Various | Yes | ±1.5mm |
| Short Leg Size | 20mm - 150mm | Various | Yes | ±1.5mm |
| Thickness | 3mm - 20mm | Various | Yes | ±0.5mm |
| Length | 6m - 12m | 6m, 12m | Yes | +50mm/-0mm |
| Surface Finish | Hot Rolled, Pickled | Hot Rolled | Yes | Mill Scale |
| End Condition | Square Cut, Saw Cut | Square Cut | Yes | ±2° |
| Standards Compliance | ASTM A36, EN 10056 | ASTM A36 | Multiple | Full compliance |
| Weight Tolerance | ±5% | Theoretical | Yes | ASTM A6 |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Bundles, Loose | Bundles | Custom | Export standard |
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Our Advantages in Processing เหล็กกล้ารีดร้อนมุมขาไม่เท่ากัน
Efficient Hot Rolling Process
The hot rolling manufacturing process enables superior material flow and grain structure refinement, resulting in enhanced mechanical properties and uniform material distribution throughout the unequal leg angles. This process ensures optimal strength-to-weight ratio.
Precise Dimensional Control
Hot rolling technology allows for accurate control of leg length differences and thickness variations, maintaining tight tolerances during the forming process. This precision ensures consistent quality and reliable fit in structural applications.
Enhanced Surface Finish
The high-temperature rolling process creates a smooth, scale-free surface finish on the steel angles, minimizing the need for secondary finishing operations and reducing overall production costs while ensuring better corrosion resistance.
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