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Technical Specifications
Product Overview
Hot Rolled Steel Equal Leg Angle is a versatile structural steel product manufactured through hot rolling process from carbon steel billets. This L-shaped structural member features equal leg dimensions and is widely used in construction and fabrication applications requiring structural support and framework.
Key Features:
- High strength-to-weight ratio for structural applications
- Excellent weldability and machinability
- Cost-effective structural solution
- Good formability for fabrication work
- Consistent dimensional accuracy
Manufacturing Process: Hot rolled from carbon steel billets at temperatures above 1000°C, ensuring optimal grain structure and mechanical properties. The hot rolling process provides excellent surface finish and dimensional consistency.
Applications: Building construction, structural frameworks, transmission towers, industrial equipment supports, architectural applications, machinery frames, and general fabrication work requiring angular structural members.
🧪 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) | - | 0.15 | 0.08 | ≤ 0.15 |
| Nickel (Ni) | - | 0.15 | 0.08 | ≤ 0.15 |
| Iron (Fe) | Balance | Balance | 98.2 | Balance |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 400-550 MPa | 485 MPa | ASTM A370 | Room Temp |
| Yield Strength | 250 MPa min | 275 MPa | ASTM A370 | Room Temp |
| Elongation | 20% min | 26% | ASTM A370 | Room Temp |
| Hardness (Brinell) | - | 140 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 | 1425-1540 | °C | - | DSC Analysis |
| Thermal Conductivity | 50.2 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 434 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 11.7 | μm/m·K | 0-100°C | ASTM E228 |
| Electrical Resistivity | 162 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | High | μ/μ₀ | Room Temp | ASTM A342 |
| Curie Temperature | 770 | °C | - | Ferromagnetic |
📏 Product Specifications
| Specification | Available Range | Standard Length | Custom Available | Tolerance |
|---|---|---|---|---|
| Leg Length | 20mm - 200mm | Various | Yes | ±1.5mm |
| Thickness | 3mm - 20mm | Various | Yes | ±0.5mm |
| Length | 6m - 12m | 6m, 9m, 12m | Yes | +50mm/-0mm |
| Surface Finish | Hot Rolled, Pickled | Hot Rolled | Yes | Mill finish |
| Edge Condition | Mill Edge, Rounded | Mill Edge | Yes | ASTM standard |
| End Condition | Square Cut, Beveled | Square Cut | Yes | ±2° |
| Standards Compliance | ASTM A36, A572, EN S235 | ASTM A36 | Multiple | Full compliance |
| Weight Tolerance | ±5% | Theoretical | Actual | 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 เหล็กฉากเท่าที่ร้อนหล่อ
Consistent Heat Treatment Process
The hot-rolling manufacturing process ensures uniform material properties throughout the angle by maintaining precise temperature control during formation, resulting in enhanced structural integrity and reliable performance across the entire length of the product.
Superior Surface Finish
Hot-rolling technology creates a smooth, uniform surface finish while maintaining tight dimensional tolerances, reducing the need for secondary finishing operations and ensuring excellent material consistency for structural applications.
Optimized Grain Structure
The controlled hot-rolling process refines the steel's grain structure during formation, leading to improved mechanical properties, better ductility, and enhanced resistance to deformation under load conditions.
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