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Technical Specifications
Product Overview
Metallurgical Characteristics
EN3B exhibits a predominantly ferritic-pearlitic microstructure with fine grain size achieved through controlled rolling and normalization. The balanced carbon content provides optimal combination of strength and ductility, while controlled manganese content ensures good hardenability and weldability. The fine-grained structure contributes to excellent impact toughness and fatigue resistance essential for structural applications.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1050-1200°C followed by air cooling or normalization at 860-920°C. This process ensures uniform grain structure and optimal mechanical properties. The controlled cooling rate prevents formation of undesirable microstructures while maintaining excellent formability and weldability characteristics.
Manufacturing Excellence
Our state-of-the-art production facility utilizes advanced ladle metallurgy for precise chemical composition control, followed by continuous casting and controlled rolling. Real-time monitoring systems ensure consistent quality throughout the production process, with particular attention to grain size control and mechanical property uniformity.
Specialized Quality Testing
EN3B undergoes comprehensive testing including weldability assessments per AWS D1.1 standards, formability testing through bend and cup drawing tests, fatigue strength evaluation using rotating beam testing, and atmospheric corrosion resistance testing in salt spray chambers. These tests ensure optimal performance in structural environments.
Application Engineering
For building construction, EN3B provides excellent weldability for structural connections and adequate strength for load-bearing applications. In bridge engineering, its fatigue resistance and atmospheric corrosion properties ensure long-term durability. For mechanical manufacturing, the material offers good machinability and forming characteristics. In vehicle construction, EN3B delivers the required strength-to-weight ratio and crashworthiness. General engineering applications benefit from its versatility and reliable mechanical properties across various fabrication processes.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 - 0.25 |
| Manganese (Mn) | 0.50 - 0.80 |
| Silicon (Si) | 0.10 - 0.40 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.040 |
| Aluminum (Al) | 0.020 - 0.055 |
| Nitrogen (N) | ≤ 0.012 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 235 - 275 |
| Tensile Strength (MPa) | 430 - 580 |
| Elongation (%) | ≥ 23 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 120 - 160 |
| Fatigue Strength (MPa) | 180 - 220 |
🔬 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) | 200 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Beams, Channels, Angles |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3000mm |
| Length Range | 6000 - 12000mm |
| Standards Compliance | BS EN 10025-2, ASTM A36, JIS G3101 |
| Heat Treatment Condition | Hot Rolled, Normalized |
| Surface Finish | Mill Scale, Pickled, Shot Blasted |
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Our Advantages in Processing EN3B Steel
Advanced Controlled Rolling Technology
MetalZenith utilizes precision-controlled rolling with optimized temperature profiles and reduction schedules to achieve superior grain structure and mechanical properties. Our advanced processing ensures consistent strength and excellent formability throughout the material thickness, essential for structural applications.
Comprehensive Structural Testing
Our EN3B steel undergoes rigorous testing including weldability assessments, bend testing for formability, fatigue strength evaluation, and atmospheric corrosion resistance testing. This comprehensive quality assurance ensures optimal performance in demanding structural environments.
Custom Fabrication Services
MetalZenith provides complete customization services including precision cutting, forming, welding preparation, and surface treatment. Our technical support team works closely with customers to optimize material specifications for specific structural applications and project requirements.
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