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Technical Specifications
Product Overview
Metallurgical Characteristics
EN Structural Steel Grade features a fine-grained ferritic-pearlitic microstructure optimized for structural applications. The controlled carbon content and balanced alloying elements provide excellent strength-to-weight ratio while maintaining superior ductility and toughness. Microalloying additions enhance grain refinement and precipitation strengthening, resulting in improved mechanical properties and weldability.
Heat Treatment Process
MetalZenith employs controlled rolling at temperatures between 850-950°C followed by accelerated cooling or normalization depending on application requirements. Our thermomechanical controlled processing (TMCP) ensures optimal grain structure development and enhanced mechanical properties while maintaining excellent formability characteristics.
Manufacturing Process
Our advanced manufacturing process includes electric arc furnace melting with secondary refining, continuous casting, and precision hot rolling. Real-time process monitoring ensures consistent chemical composition and mechanical properties throughout production. Quality control includes ultrasonic testing, dimensional verification, and comprehensive mechanical testing.
Specialized Quality Testing
MetalZenith conducts extensive testing specific to structural applications including welding performance evaluation using standard procedures, forming capability assessment through bend testing, fatigue strength determination under cyclic loading, and atmospheric corrosion resistance testing. These specialized tests ensure optimal performance in demanding structural environments.
Application Engineering Considerations
For building construction applications, our EN Structural Steel provides excellent seismic resistance and fire performance. Bridge engineering benefits from superior fatigue resistance and weathering characteristics. Machinery manufacturing applications leverage the material's excellent machinability and welding properties. Vehicle construction utilizes the steel's high strength-to-weight ratio and crash energy absorption capabilities. General engineering applications benefit from the material's versatility and consistent performance across various fabrication processes.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | 1.00 - 1.70 |
| Silicon (Si) | 0.15 - 0.55 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Aluminum (Al) | ≥ 0.015 |
| Copper (Cu) | ≤ 0.55 |
| Chromium (Cr) | ≤ 0.30 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 355 |
| Tensile Strength (MPa) | 470 - 630 |
| Elongation (%) | ≥ 22 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 140 - 190 |
| Fatigue Strength (MPa) | ≥ 160 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 50.2 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Beams, Channels, Angles, Bars, Tubes |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | EN 10025, EN 10210, ASTM A572, JIS G3106 |
| Heat Treatment Condition | Hot Rolled, Normalized, or TMCP |
| Surface Finish | Mill Scale, Shot Blasted, or Pickled |
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Our Advantages in Processing EN Structural Steel Grade
Advanced Thermomechanical Processing
MetalZenith utilizes controlled rolling with precise temperature management and optimized cooling rates to achieve superior grain structure and enhanced mechanical properties. Our advanced processing ensures consistent strength-to-weight ratio and improved formability throughout the material cross-section.
Comprehensive Structural Testing
Our EN Structural Steel undergoes extensive testing including welding performance evaluation, forming capability assessment, fatigue strength testing, and atmospheric corrosion resistance analysis. This comprehensive testing ensures reliable performance in demanding structural applications.
Custom Engineering Solutions
MetalZenith provides tailored processing services including precision cutting, forming, and heat treatment optimization. Our technical team offers comprehensive support for structural design requirements and application-specific material modifications.
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