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Technical Specifications
Product Overview
Metallurgical Characteristics
S700 exhibits a fine-grained ferritic-bainitic microstructure achieved through controlled thermomechanical processing. The strategic addition of microalloying elements including vanadium, niobium, and titanium promotes precipitation strengthening and grain refinement, resulting in exceptional strength while maintaining structural toughness. The optimized chemistry ensures excellent through-thickness properties essential for heavy structural applications.
Heat Treatment Process
MetalZenith employs advanced TMCP with controlled rolling temperatures between 850-950°C followed by accelerated cooling to achieve optimal microstructure development. For enhanced properties, quenching and tempering at 580-650°C can be applied. Our precise temperature control and cooling rate management ensure consistent mechanical properties and dimensional stability throughout the material cross-section.
Manufacturing Excellence
Our state-of-the-art production facility utilizes computer-controlled rolling mills with real-time temperature monitoring and automated cooling systems. MetalZenith's integrated quality management system ensures traceability from raw material selection through final inspection, with continuous monitoring of chemical composition, mechanical properties, and dimensional accuracy.
Specialized Testing Protocols
S700 undergoes comprehensive testing including welding performance evaluation per AWS D1.1, cold forming assessments, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance evaluation. Our advanced testing laboratory performs Charpy impact testing, fracture toughness analysis, and residual stress measurements to ensure optimal performance in structural applications.
Structural Engineering Applications
The exceptional strength-to-weight ratio of S700 makes it ideal for weight-critical structural applications including high-rise construction where reduced member sizes enable architectural flexibility, long-span bridge designs requiring minimal deflection, heavy machinery manufacturing demanding high load capacity, commercial vehicle construction for payload optimization, and industrial structures requiring seismic resistance and durability.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | 1.20 - 1.70 |
| Silicon (Si) | 0.15 - 0.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 0.30 - 1.50 |
| Nickel (Ni) | 0.30 - 2.00 |
| Molybdenum (Mo) | 0.15 - 0.70 |
| Vanadium (V) | 0.03 - 0.20 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 700 |
| Tensile Strength (MPa) | 750 - 950 |
| Elongation (%) | ≥ 14 |
| Impact Energy at -20°C (J) | ≥ 30 |
| Hardness (HB) | 230 - 280 |
| Fatigue Strength (MPa) | ≥ 350 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1480 - 1520 |
| Thermal Conductivity (W/m·K) | 42.5 |
| Thermal Expansion (×10??/K) | 12.5 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Beams, Channels, Angles, Bars |
| Thickness Range | 3 - 80mm |
| Width Range | 1000 - 3200mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | EN 10025-6, ASTM A514, JIS G3106 |
| Heat Treatment Condition | TMCP (As-Rolled) or Quenched & Tempered |
| Surface Finish | Hot Rolled, Shot Blasted, Pickled |
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Our Advantages in Processing S700 High Strength Structural Steel
Advanced Thermomechanical Processing
MetalZenith utilizes cutting-edge TMCP technology with controlled rolling temperatures and accelerated cooling to achieve optimal microstructure refinement. Our precision-controlled processing ensures consistent high strength properties while maintaining excellent toughness and weldability throughout the material cross-section.
Comprehensive Structural Performance Testing
Our S700 steel undergoes extensive testing protocols including welding performance evaluation, cold forming assessments, fatigue strength analysis, and atmospheric corrosion resistance testing. MetalZenith's advanced testing facilities ensure optimal performance in structural applications with rigorous quality validation.
Custom Fabrication Solutions
MetalZenith provides comprehensive custom processing services including precision cutting, forming, and heat treatment optimization. Our technical support team works closely with structural engineers to deliver tailored solutions for complex architectural and engineering projects with complete material traceability.
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