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Technical Specifications
Product Overview
Metallurgical Characteristics
EN3 is a low-carbon structural steel with a predominantly ferritic-pearlitic microstructure optimized for structural applications. The controlled carbon content and manganese addition provide excellent balance of strength, ductility, and weldability. The fine-grain structure achieved through controlled rolling ensures superior mechanical properties and consistent performance across various thickness ranges.
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 optimal grain refinement and stress relief, resulting in improved formability and weldability characteristics essential for structural fabrication.
Advanced Manufacturing Process
Our state-of-the-art production facility utilizes continuous casting technology followed by precision controlled rolling with real-time temperature monitoring. The thermomechanical processing parameters are optimized to achieve consistent mechanical properties and excellent surface quality throughout the entire product range.
Specialized Quality Testing
MetalZenith conducts comprehensive testing specific to structural steel applications including weldability testing per AWS D1.1, bend testing for formability assessment, rotating beam fatigue testing, and accelerated atmospheric corrosion testing. These specialized tests ensure optimal performance in demanding structural environments.
Application Engineering Considerations
For building construction, EN3 provides excellent weldability for structural connections and adequate strength for load-bearing applications. In bridge engineering, the material's fatigue resistance and atmospheric corrosion properties ensure long-term durability. For machinery manufacturing, the good machinability and formability enable complex component fabrication. In vehicle construction, the steel's crashworthiness and weight optimization characteristics support safety and efficiency requirements. General engineering applications benefit from the material's versatility and cost-effectiveness.
🧪 Chemical Composition
Element | Composition (%) |
---|---|
Carbon (C) | 0.14 - 0.22 |
Manganese (Mn) | 0.70 - 1.00 |
Silicon (Si) | 0.10 - 0.40 |
Phosphorus (P) | ≤ 0.050 |
Sulfur (S) | ≤ 0.050 |
Aluminum (Al) | ≥ 0.020 |
Copper (Cu) | ≤ 0.30 |
⚙️ Mechanical Properties
Property | Value |
---|---|
Yield Strength (MPa) | 250 - 280 |
Tensile Strength (MPa) | 430 - 580 |
Elongation (%) | ≥ 23 |
Impact Energy at 20°C (J) | ≥ 27 |
Hardness (HB) | 120 - 170 |
Fatigue Strength (MPa) | 200 - 240 |
🔬 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, 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 EN3 Steel

Advanced Controlled Rolling Technology
MetalZenith employs precision controlled rolling with optimized temperature profiles and reduction schedules to achieve superior grain structure and enhanced mechanical properties. Our advanced processing ensures consistent strength and excellent formability throughout the material cross-section.
Comprehensive Structural Testing
Our EN3 steel undergoes rigorous testing including weldability assessment, bend testing for formability, fatigue strength evaluation, and atmospheric corrosion resistance testing. This comprehensive quality assurance ensures optimal performance in structural applications.


Custom Fabrication Services
MetalZenith provides complete custom processing services including cutting, forming, welding preparation, and surface treatment. Our technical support team offers expert guidance for structural design optimization and fabrication best practices.
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