20 Years Experience | 1000+ Brand Partners | Full Customization
We have 20 years of industry experience, have partnered with over 1,000 brands, and support any customization needs.
Technical Specifications
Product Overview
Metallurgical Characteristics
SECC steel features a fine-grained ferritic microstructure achieved through controlled cold rolling and annealing processes. The electro-galvanized coating provides a uniform zinc layer with excellent adhesion, creating a barrier against atmospheric corrosion while maintaining the base steel's structural integrity and formability characteristics.
Heat Treatment Process
MetalZenith employs continuous annealing at 650-750°C followed by controlled cooling to optimize the microstructure for enhanced ductility and strength. The subsequent electro-galvanizing process utilizes precise current density control and zinc sulfate electrolyte to achieve uniform coating thickness and superior corrosion protection.
Manufacturing Process Excellence
Our advanced production line integrates cold rolling mills with tension leveling and continuous electro-galvanizing facilities. Real-time thickness monitoring and automated coating weight control ensure consistent product quality, while our quality management system maintains traceability throughout the entire manufacturing process.
Specialized Quality Testing
SECC steel undergoes comprehensive testing including welding performance evaluation using standard welding procedures, forming limit analysis through Erichsen cupping tests, fatigue strength assessment under cyclic loading, and accelerated atmospheric corrosion testing in salt spray chambers to validate long-term durability in structural applications.
Application Engineering Considerations
For building structural components, SECC provides excellent corrosion resistance in moderate atmospheric conditions while maintaining weldability for connection details. In automotive applications, the material's superior formability enables complex stamping operations for body panels and chassis components. Bridge and infrastructure projects benefit from the enhanced atmospheric corrosion resistance, reducing maintenance requirements. Machinery manufacturing applications leverage the material's dimensional stability and surface quality for precision components.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | ≤ 0.60 |
| Silicon (Si) | ≤ 0.50 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.035 |
| Aluminum (Al) | ≥ 0.020 |
| Zinc Coating (Zn) | 20 - 60 g/m2 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 140 |
| Tensile Strength (MPa) | 270 - 410 |
| Elongation (%) | ≥ 34 |
| Impact Energy at 0°C (J) | ≥ 27 |
| Hardness (HRB) | 45 - 70 |
| Fatigue Strength (MPa) | ≥ 120 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.87 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 50.2 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 200 |
| Electrical Resistivity (μΩ·cm) | 15.0 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Sheets, Coils, Cut-to-Length Plates |
| Thickness Range | 0.4 - 3.2mm |
| Width Range | 600 - 1850mm |
| Coil Weight | 3 - 25 tons |
| Standards Compliance | JIS G3313, ASTM A653, EN 10152 |
| Surface Treatment | Electro-Galvanized (EG) |
| Coating Designation | Z12, Z18, Z25, Z35 |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing SECC Steel
Advanced Electro-Galvanizing Technology
MetalZenith utilizes cutting-edge continuous electro-galvanizing lines with precise current density control and multi-stage coating processes. Our advanced technology ensures uniform zinc coating distribution, optimal adhesion strength, and superior corrosion resistance for structural applications.
Comprehensive Structural Testing
Our SECC steel undergoes rigorous testing protocols including welding performance evaluation, forming limit analysis, fatigue strength assessment, and accelerated atmospheric corrosion testing. These specialized tests ensure optimal performance in demanding structural environments.
Custom Processing & Engineering Support
MetalZenith provides tailored processing solutions including precision cutting, forming, and surface treatment services. Our technical team offers comprehensive engineering support for structural design optimization and application-specific material selection.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
