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
Hot Rolled Steel features a predominantly ferritic-pearlitic microstructure achieved through controlled hot rolling above the recrystallization temperature. The hot rolling process promotes grain refinement and uniform distribution of carbides, resulting in excellent strength-ductility balance and superior weldability for structural applications.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1100-1250°C followed by controlled cooling to achieve optimal mechanical properties. The process includes reheating, roughing, finishing rolling, and controlled cooling to ensure uniform microstructure and dimensional stability.
Manufacturing Process Excellence
Our state-of-the-art hot rolling facility features advanced process control systems that monitor temperature, rolling force, and cooling rates in real-time. This ensures consistent mechanical properties and surface quality while optimizing grain structure for enhanced formability and weldability.
Structural Performance Testing
MetalZenith conducts comprehensive testing including welding performance evaluation using standard procedures, forming capability assessment through bend tests, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance testing to ensure long-term durability in outdoor structural applications.
Application-Specific Considerations
For building construction, our hot rolled steel provides excellent weldability and formability for complex structural connections. In bridge engineering, the material offers superior fatigue resistance and weather durability. For machinery manufacturing, the consistent mechanical properties ensure reliable performance under dynamic loads. In vehicle construction, the material's strength-to-weight ratio and crashworthiness make it ideal for chassis applications.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.25 - 0.29 |
| Manganese (Mn) | 0.80 - 1.20 |
| Silicon (Si) | 0.15 - 0.40 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.050 |
| Copper (Cu) | 0.20 - 0.40 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 250 - 345 |
| Tensile Strength (MPa) | 400 - 550 |
| Elongation (%) | ≥ 20 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 120 - 180 |
| Fatigue Strength (MPa) | 160 - 200 |
🔬 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) | 200 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Beams, Channels, Angles, Bars |
| Thickness Range | 3 - 200mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 12000mm |
| Standards Compliance | ASTM A36, ASTM A572, EN S235, JIS SS400 |
| Surface Condition | Hot Rolled, Pickled, Shot Blasted |
| Tolerance Class | Class A, Class B per ASTM standards |
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Our Advantages in Processing Hot Rolled Steel
Advanced Hot Rolling Technology
MetalZenith utilizes controlled hot rolling processes with real-time temperature monitoring and optimized rolling schedules to achieve superior mechanical properties and dimensional consistency. Our advanced rolling technology ensures uniform grain structure and enhanced strength-to-weight ratio throughout the material cross-section.
Comprehensive Structural Testing
Our hot rolled steel undergoes rigorous testing including welding performance evaluation, forming capability assessment, fatigue strength testing, and atmospheric corrosion resistance analysis. MetalZenith's quality assurance program ensures optimal performance in demanding structural applications.
Custom Processing & Engineering Support
MetalZenith offers comprehensive custom processing services including cutting, forming, welding preparation, and surface treatment. Our technical team provides expert engineering support for structural design optimization and material selection to meet specific project requirements.
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