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Technical Specifications
Product Overview
Metallurgical Characteristics
St 60 steel features a fine-grained ferritic-pearlitic microstructure achieved through controlled rolling and normalization processes. The optimized carbon-manganese composition with microalloying additions provides excellent strength-toughness balance and superior weldability. The refined grain structure enhances both mechanical properties and structural integrity for demanding applications.
Heat Treatment Process
MetalZenith employs controlled rolling at temperatures between 850-950°C followed by air cooling or normalization at 900-920°C. This thermomechanical processing ensures optimal grain refinement and uniform mechanical properties throughout the material cross-section, critical for structural applications requiring consistent performance.
Manufacturing Excellence
Our advanced production facilities utilize electric arc furnace steelmaking with secondary refining processes including ladle furnace treatment and vacuum degassing. Continuous casting and controlled rolling ensure superior surface quality and dimensional accuracy. Real-time process monitoring guarantees consistent chemical composition and mechanical properties.
Structural Performance Testing
MetalZenith conducts comprehensive testing protocols specific to structural applications including weldability assessment using standardized procedures, forming performance evaluation through bend testing, fatigue strength analysis under cyclic loading, and atmospheric corrosion resistance testing. These specialized tests ensure optimal performance in building construction, bridge engineering, and heavy machinery applications.
Application Engineering
For building construction applications, St 60 provides excellent strength-to-weight ratio and seismic resistance. In bridge engineering, the superior fatigue strength and weldability ensure long-term structural integrity under dynamic loading. For machinery manufacturing, the combination of high strength and good machinability enables efficient fabrication of complex components. Vehicle manufacturing benefits from the excellent forming characteristics and crash energy absorption properties.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.17 - 0.24 |
| Manganese (Mn) | 1.40 - 1.70 |
| Silicon (Si) | 0.15 - 0.40 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Aluminum (Al) | ≥ 0.020 |
| Chromium (Cr) | 0.30 - 0.60 |
| Nickel (Ni) | 0.30 - 0.60 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 355 |
| Tensile Strength (MPa) | 590 - 770 |
| Elongation (%) | ≥ 17 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 170 - 230 |
| Fatigue Strength (MPa) | 280 - 320 |
🔬 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 | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Beams, Channels, Angles, Bars, Sheets |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3200mm |
| Length Range | 6000 - 12000mm |
| Standards Compliance | ASTM A572, EN 10025, JIS G3106 |
| Heat Treatment Condition | Normalized or Hot Rolled |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
| Weldability Rating | Excellent (CEV ≤ 0.45) |
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Our Advantages in Processing St 60 Steel
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 St 60 steel. Our advanced thermomechanical processing ensures consistent mechanical properties and enhanced structural performance throughout the material cross-section.
Comprehensive Structural Testing
Our St 60 steel undergoes extensive testing protocols including weldability assessment, forming performance evaluation, fatigue strength testing, and atmospheric corrosion resistance analysis. MetalZenith's quality assurance ensures superior performance in demanding structural applications with long-term reliability.
Custom Structural Solutions
MetalZenith provides comprehensive custom processing services for St 60 steel including precision cutting, forming, heat treatment, and surface preparation. Our technical support team works closely with structural engineers to optimize material specifications for specific construction and engineering requirements.
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