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Technical Specifications
Product Overview
Metallurgical Characteristics
SPHC steel exhibits a predominantly ferritic-pearlitic microstructure with fine grain size achieved through controlled hot rolling processes. The low carbon content ensures excellent formability and weldability, while the balanced chemical composition provides adequate strength for structural applications. The microstructure promotes uniform deformation during forming operations and consistent mechanical properties.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1100-1250°C followed by controlled cooling to achieve optimal mechanical properties. The hot rolling process includes multiple passes with precise temperature control to ensure uniform grain refinement and eliminate internal stresses. Post-rolling cooling rates are optimized to achieve the desired ferritic-pearlitic microstructure.
Manufacturing Process Excellence
Our advanced manufacturing process incorporates continuous casting technology, precision hot rolling mills with automated gauge control, and sophisticated cooling systems. MetalZenith's process control systems monitor temperature, rolling force, and cooling rates in real-time to ensure consistent quality and dimensional accuracy throughout production.
Specialized Quality Testing
SPHC steel undergoes comprehensive testing including tensile testing per ASTM A370, bend testing for formability assessment, welding performance evaluation using standard procedures, and accelerated atmospheric corrosion testing. Fatigue strength testing is conducted using rotating beam methods, while forming limit diagrams are generated to characterize deep drawing capabilities essential for automotive applications.
Application-Specific Technical Considerations
For building and construction applications, SPHC steel provides excellent weldability with standard procedures and good atmospheric corrosion resistance when properly protected. In automotive manufacturing, the steel's superior formability enables complex stamping operations while maintaining structural integrity. For machinery and equipment fabrication, the balanced strength-to-weight ratio and machinability make it ideal for brackets, frames, and structural components. Bridge construction benefits from the steel's consistent mechanical properties and reliable welding characteristics under various environmental conditions.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.15 |
| Manganese (Mn) | ≤ 0.60 |
| Silicon (Si) | ≤ 0.30 |
| Phosphorus (P) | ≤ 0.050 |
| Sulfur (S) | ≤ 0.050 |
| Aluminum (Al) | ≥ 0.020 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 205 |
| Tensile Strength (MPa) | 270 - 410 |
| Elongation (%) | ≥ 28 |
| Impact Energy at 0°C (J) | ≥ 27 |
| Hardness (HB) | 95 - 140 |
| Fatigue Strength (MPa) | 135 - 165 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.87 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 51.9 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 200 |
| Electrical Resistivity (μΩ·cm) | 15.0 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Hot-rolled sheets, Plates, Coils, Strips |
| Thickness Range | 1.2 - 25.0mm |
| Width Range | 600 - 2000mm |
| Length Range | 1000 - 12000mm |
| Standards Compliance | JIS G3131, ASTM A1011, EN 10111 |
| Surface Condition | Hot-rolled, Pickled, Oiled |
| Edge Condition | Mill edge, Slit edge, Trimmed edge |
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Our Advantages in Processing SPHC Steel
Advanced Hot Rolling Technology
MetalZenith utilizes precision-controlled hot rolling processes with real-time temperature monitoring and optimized cooling profiles to achieve superior surface finish and consistent mechanical properties. Our advanced rolling technology ensures excellent formability and uniform grain structure essential for structural applications.
Comprehensive Quality Testing
Our SPHC steel undergoes extensive testing including tensile strength evaluation, bend testing for formability assessment, welding performance verification, and atmospheric corrosion resistance testing. MetalZenith's quality assurance ensures reliable performance in demanding structural and automotive applications.
Custom Processing & Technical Support
MetalZenith offers comprehensive custom processing services including precision cutting, forming, and surface treatment options. Our technical team provides expert consultation on material selection, fabrication techniques, and application-specific requirements to optimize your structural steel projects.
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