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Technical Specifications
Product Overview
Steel Raised Expanded Metal is manufactured from high-quality carbon steel through a precision expanding process that creates a three-dimensional mesh with raised diamond-shaped openings. This process provides excellent strength-to-weight ratio and superior drainage capabilities.
Key Features:
- Superior slip resistance due to raised surface profile
- Excellent drainage and ventilation properties
- High strength-to-weight ratio
- Cost-effective alternative to perforated plates
- Easy to fabricate and install
- Self-cleaning surface design
Manufacturing Process: Produced by simultaneously slitting and stretching steel sheets in a single operation, creating a raised diamond pattern without material waste. The expanding process work-hardens the material, increasing its strength.
Applications: Industrial flooring, walkways, platforms, stair treads, security barriers, ventilation screens, filtration applications, architectural facades, and safety grating systems.
🧪 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 | 0.15 | ≤ 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) | - | 120-140 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | - | 70-80 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 Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Sheet Thickness | 0.5mm - 8mm | 1.5mm - 3mm | Yes | ±0.1mm |
| Mesh Opening (LWD) | 3mm - 100mm | 10mm - 50mm | Yes | ±0.5mm |
| Mesh Opening (SWD) | 2mm - 50mm | 5mm - 25mm | Yes | ±0.3mm |
| Strand Width | 1mm - 10mm | 2mm - 6mm | Yes | ±0.2mm |
| Raised Height | 3mm - 25mm | 6mm - 15mm | Yes | ±1mm |
| Sheet Size | 1m?á2m - 2.5m?á6m | 1.22m?á2.44m | Yes | ±5mm |
| Surface Finish | Mill, Galvanized, Painted | Mill Finish | Yes | Standard |
| Open Area | 40% - 80% | 60% - 70% | Calculated | ±2% |
| Standards Compliance | ASTM F1267, ISO 4762 | ASTM F1267 | Multiple | Full compliance |
| Packaging | Pallets, Bundles, Crates | Pallets | Custom | Export standard |
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Our Advantages in Processing Malha Metálica Expandida em Aço
Precision Slitting Technology
Advanced slitting process ensures uniform and precise cuts in steel sheets, creating consistent mesh patterns with exact specifications. This technology allows for tight dimensional tolerances and superior structural integrity across large production runs.
Controlled Stretching Process
Specialized stretching equipment applies calibrated force to expand the metal uniformly, creating precise diamond-shaped openings while maintaining material strength. This process optimizes the balance between material usage and structural performance.
Raised Pattern Formation
Innovative forming techniques create elevated surfaces during the expansion process, resulting in enhanced grip characteristics and increased material rigidity. This three-dimensional structure adds value through improved safety and structural performance.
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