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Technical Specifications
Product Overview
Hot Rolled Steel MC Channel is a structural steel section manufactured through hot rolling process, featuring a distinctive C-shaped cross-section with sloped flanges. This carbon steel channel provides excellent structural support and is widely used in construction and industrial applications.
Key Features:
- High strength-to-weight ratio for efficient structural design
- Excellent weldability and machinability
- Cost-effective solution for structural applications
- Versatile mounting and connection options
- 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 frames, industrial structures, machinery frames, support brackets, conveyor systems, mezzanine construction, equipment mounting, and general structural applications requiring moderate load-bearing capacity.
🧪 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 | 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 |
|---|---|---|---|---|
| Depth (A) | 75mm - 460mm | Various | Yes | ±3mm |
| Flange Width (B) | 35mm - 65mm | Various | Yes | ±2mm |
| Web Thickness | 6mm - 18mm | Various | Yes | ±0.5mm |
| Flange Thickness | 8mm - 20mm | Various | Yes | ±0.5mm |
| Length | 6m - 12m | 12m | Yes | +50mm/-0mm |
| Surface Finish | Hot Rolled, Pickled | Hot Rolled | Yes | Mill Scale |
| Standards Compliance | ASTM A36, A572, A992 | A36 | Multiple | Full compliance |
| Straightness | L/1000 max | Standard | Precision | AISC tolerance |
| 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 เหล็กตัวซีร้อนจัด
Enhanced Strength Through Heat
The hot rolling process subjects steel to high temperatures above recrystallization point, creating a more uniform grain structure that significantly improves the material's overall strength and durability while reducing internal stresses.
Precise Shape Formation
During the hot rolling manufacturing process, the elevated temperature allows for precise shaping of the MC channel profile, ensuring consistent dimensional accuracy and uniform material distribution throughout the length.
Superior Surface Quality
Hot rolling produces a smooth, scale-free surface finish as the high temperature processing eliminates surface imperfections and creates a more refined microstructure, resulting in better corrosion resistance.
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