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Technical Specifications
Product Overview
Metallurgical Characteristics
R260 is a fine-grain structural steel with a predominantly ferritic-pearlitic microstructure optimized for structural applications. The controlled addition of microalloying elements such as niobium and titanium promotes grain refinement and precipitation strengthening, resulting in excellent strength-to-weight ratio and superior formability essential for complex structural fabrication.
Heat Treatment Process
MetalZenith employs controlled rolling followed by accelerated cooling or normalization at 880-920°C with controlled cooling rates to achieve optimal mechanical properties. Our thermomechanical processing ensures uniform microstructure and enhanced toughness while maintaining excellent weldability for structural applications.
Manufacturing Excellence
Our advanced manufacturing process incorporates real-time temperature monitoring and controlled deformation schedules to optimize grain structure. MetalZenith's state-of-the-art rolling mills and heat treatment facilities ensure consistent mechanical properties and dimensional accuracy critical for structural steel applications.
Specialized Quality Testing
R260 undergoes comprehensive testing including welding performance evaluation using standard procedures, forming capability assessment through bend testing, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance evaluation. These specialized tests ensure optimal performance in demanding structural environments.
Application Engineering
For building construction and bridge engineering, R260 provides excellent strength-to-weight ratio and superior weldability. In machinery manufacturing and vehicle construction, its enhanced formability and fatigue resistance ensure reliable performance. For general engineering applications, the steel's balanced mechanical properties and atmospheric corrosion resistance make it ideal for diverse structural requirements.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | 1.20 - 1.70 |
| Silicon (Si) | 0.15 - 0.55 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.025 |
| Aluminum (Al) | ≥ 0.015 |
| Niobium (Nb) | 0.015 - 0.060 |
| Titanium (Ti) | 0.010 - 0.050 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 260 |
| Tensile Strength (MPa) | 370 - 510 |
| Elongation (%) | ≥ 26 |
| Impact Energy at 0°C (J) | ≥ 27 |
| Hardness (HB) | 120 - 160 |
| Fatigue Strength (MPa) | ≥ 180 |
🔬 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, Sheets, Beams, Channels, Angles, Bars |
| Thickness Range | 3 - 80mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A572, EN 10025-2, JIS G3106 |
| Heat Treatment Condition | Hot Rolled or Normalized |
| Surface Finish | Mill Scale, Pickled, Shot Blasted |
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Our Advantages in Processing R260 Steel
Advanced Thermomechanical Processing
MetalZenith utilizes controlled rolling and precise thermomechanical processing with real-time microstructure monitoring to achieve optimal grain structure and enhanced mechanical properties. Our advanced processing ensures superior strength-to-weight ratio and excellent formability throughout the material thickness.
Comprehensive Structural Testing
Our R260 steel undergoes extensive testing including welding performance evaluation, forming capability assessment, fatigue strength testing, and atmospheric corrosion resistance analysis. This comprehensive testing ensures optimal performance in demanding structural applications.
Custom Fabrication Solutions
MetalZenith provides complete custom processing services including precision cutting, forming, and heat treatment optimization. Our technical team offers expert consultation for structural design requirements and fabrication challenges.
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