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Technical Specifications
Product Overview
Metallurgical Characteristics
E350 (S355JR) exhibits a fine-grained ferritic-pearlitic microstructure achieved through controlled rolling processes. The balanced carbon and manganese content provides optimal strength-to-weight ratio while maintaining excellent weldability and formability. The microstructure ensures uniform mechanical properties and superior structural integrity under various loading conditions.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1050-1200°C followed by controlled cooling to achieve optimal mechanical properties. Normalization at 880-920°C may be applied for enhanced uniformity and stress relief, ensuring consistent performance in structural applications.
Manufacturing Excellence
Our advanced production process incorporates real-time monitoring of rolling parameters, precise temperature control, and automated quality inspection systems. MetalZenith's state-of-the-art facilities ensure consistent chemical composition, mechanical properties, and dimensional accuracy throughout production.
Specialized Testing Protocols
E350 steel undergoes comprehensive testing including weldability assessments per AWS D1.1, forming performance evaluation using bend tests, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance testing. These specialized tests ensure optimal performance in structural applications requiring long-term durability.
Structural Application Engineering
For building construction, E350 provides excellent load-bearing capacity and seismic resistance. In bridge engineering, its superior fatigue resistance ensures long-term structural integrity under dynamic loading. For machinery manufacturing, the steel's machinability and weldability enable complex fabrication. In vehicle construction, the optimal strength-to-weight ratio contributes to fuel efficiency while maintaining safety standards.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.24 |
| Manganese (Mn) | ≤ 1.60 |
| Silicon (Si) | ≤ 0.55 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.045 |
| Nitrogen (N) | ≤ 0.012 |
| Copper (Cu) | ≤ 0.55 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 355 |
| Tensile Strength (MPa) | 470 - 630 |
| Elongation (%) | ≥ 20 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 140 - 190 |
| Fatigue Strength (MPa) | 160 - 180 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1450 - 1520 |
| Thermal Conductivity (W/m·K) | 50.2 |
| Thermal Expansion (×10??/K) | 12.0 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Beams, Channels, Angles, Bars |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3200mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | EN 10025-2, ASTM A572, JIS G3106 |
| Heat Treatment Condition | Hot Rolled, Normalized |
| Surface Finish | Mill Scale, Shot Blasted, Pickled |
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Our Advantages in Processing E350 Steel (S355JR)
Advanced Controlled Rolling Technology
MetalZenith utilizes state-of-the-art controlled rolling processes with precise temperature control and deformation parameters to achieve optimal grain refinement in E350 steel. Our advanced manufacturing ensures consistent mechanical properties and enhanced structural performance throughout the material cross-section.
Comprehensive Structural Testing
Our E350 steel undergoes extensive testing including weldability assessments, forming performance evaluation, fatigue strength testing, and atmospheric corrosion resistance analysis. MetalZenith's quality assurance ensures superior performance in demanding structural applications with complete traceability and certification.
Custom Fabrication & Engineering Support
MetalZenith provides comprehensive custom processing services including precision cutting, forming, and heat treatment tailored to specific structural requirements. Our technical team offers expert consultation on material selection, joint design, and fabrication techniques to optimize structural performance.
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