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Technical Specifications
Product Overview
Metallurgical Characteristics
SPC 440 features a refined ferritic-pearlitic microstructure achieved through controlled rolling and optimized cooling processes. The balanced chemical composition with controlled carbon content and strategic alloying elements provides excellent strength-to-weight ratio while maintaining superior formability and weldability essential for structural applications.
Heat Treatment Process
MetalZenith employs controlled rolling at temperatures between 850-950°C followed by accelerated cooling to achieve optimal mechanical properties. Our thermomechanical controlled processing (TMCP) ensures fine grain structure and uniform property distribution throughout the material cross-section.
Manufacturing Excellence
Our advanced production facility utilizes state-of-the-art rolling mills with precise temperature control and real-time monitoring systems. The controlled atmosphere processing ensures consistent chemical composition and mechanical properties, while our quality management system guarantees traceability throughout the production chain.
Structural Performance Testing
SPC 440 undergoes comprehensive testing including welding performance evaluation using standard procedures, forming capability assessment through bend tests, fatigue strength analysis under cyclic loading, and atmospheric corrosion resistance testing in various environmental conditions to ensure long-term structural integrity.
Application Engineering
For building construction, SPC 440 provides excellent seismic resistance and load-bearing capacity. In bridge engineering, its superior fatigue resistance ensures long service life under dynamic loading. For machinery manufacturing, the steel offers optimal machinability and joining characteristics. In automotive applications, it delivers crash performance and weight optimization, while general engineering benefits from its versatile processing capabilities and reliable performance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 - 0.20 |
| Manganese (Mn) | 1.20 - 1.60 |
| Silicon (Si) | 0.15 - 0.40 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.025 |
| Chromium (Cr) | 0.30 - 0.60 |
| Nickel (Ni) | 0.20 - 0.40 |
| Aluminum (Al) | ≥ 0.015 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 440 |
| Tensile Strength (MPa) | 590 - 740 |
| Elongation (%) | ≥ 17 |
| Impact Energy at 0°C (J) | ≥ 27 |
| Hardness (HB) | 180 - 220 |
| Fatigue Strength (MPa) | ≥ 200 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 48.2 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Beams, Channels, Angles, Bars |
| Thickness Range | 3 - 80mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A572, JIS G3106, EN 10025 |
| Heat Treatment Condition | Hot Rolled, Normalized, or TMCP |
| Surface Finish | Mill Scale, Pickled, Shot Blasted |
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Our Advantages in Processing SPC 440 Steel
Advanced Controlled Rolling Technology
MetalZenith utilizes precision-controlled rolling with real-time temperature and deformation monitoring to achieve optimal grain structure and enhanced mechanical properties. Our advanced processing ensures consistent strength and toughness distribution throughout the material thickness, critical for structural integrity.
Comprehensive Structural Testing
Our SPC 440 steel undergoes extensive testing including welding performance evaluation, forming capability assessment, fatigue strength analysis, and atmospheric corrosion resistance testing. This comprehensive testing ensures superior performance in demanding structural applications.
Custom Structural Solutions
MetalZenith provides tailored processing services including precision cutting, forming, and heat treatment to meet specific structural requirements. Our technical support team works closely with engineers to optimize material selection and processing for each application.
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