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Technical Specifications
Product Overview
Hot Rolled Steel Tee Bar is manufactured from high-quality carbon steel through hot rolling process, providing excellent structural properties and cost-effectiveness. This T-shaped structural steel section offers superior load-bearing capacity and is ideal for various construction and engineering applications.
Key Features:
- High strength-to-weight ratio for structural applications
- Excellent weldability and machinability
- Cost-effective solution for construction projects
- Good ductility and formability
- Consistent dimensional accuracy
Manufacturing Process: Hot rolled using advanced rolling mill technology, ensuring uniform cross-sectional properties and dimensional consistency throughout the length.
Applications: Structural framing, building construction, bridge construction, machinery frames, support brackets, architectural applications, and general engineering structures requiring T-shaped cross-sections.
🧪 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 | 485 MPa | ASTM A370 | Room Temp |
| Yield Strength | 250 MPa min | 275 MPa | ASTM A370 | Room Temp |
| Elongation | 20% min | 25% | 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 | 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 | - | Ferromagnetic |
📏 Product Specifications
| Specification | Available Range | Standard Length | Custom Available | Tolerance |
|---|---|---|---|---|
| Flange Width | 25mm - 300mm | Various | Yes | ±1.0mm |
| Web Height | 25mm - 300mm | Various | Yes | ±1.0mm |
| Flange Thickness | 3mm - 20mm | Various | Yes | ±0.5mm |
| Web Thickness | 3mm - 15mm | Various | Yes | ±0.5mm |
| Length | 3m - 12m | 6m, 9m, 12m | Yes | +50mm/-0mm |
| Surface Finish | Hot Rolled, Pickled | Hot Rolled | Yes | Mill Scale |
| End Condition | Plain Cut, Sawn | Plain Cut | Yes | Square Cut |
| Standards Compliance | ASTM A36, EN S235JR | ASTM A36 | Multiple | Full compliance |
| 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 熱間圧延鋼ティーバー
High Temperature Rolling Process
The hot rolling process performed at temperatures above 900°C allows for optimal material formability and uniform molecular structure, resulting in superior mechanical properties and reduced internal stress in the final T-bar product.
Precise T-Shape Formation
Continuous hot rolling through specialized forming stands ensures accurate T-profile geometry and dimensional consistency throughout the length of the bar, delivering optimal load-bearing capabilities and structural integrity.
Enhanced Material Strength
The controlled cooling process following hot rolling creates an ideal grain structure in the steel, maximizing tensile strength and ductility while maintaining excellent weldability and fabrication characteristics.
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