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Technical Specifications
Product Overview
Metallurgical Characteristics
Mn Steel features a carefully balanced ferritic-pearlitic microstructure with optimized manganese content ranging from 1.20-1.60%. The elevated manganese content promotes solid solution strengthening and enhances hardenability while maintaining excellent ductility. The controlled carbon content ensures optimal weldability without compromising structural integrity, making it ideal for fabricated structures requiring both strength and formability.
Heat Treatment Process
MetalZenith employs controlled rolling at temperatures between 1050-1150°C followed by controlled cooling to achieve optimal grain refinement. For enhanced properties, normalization at 880-920°C with air cooling can be applied. Our thermomechanical controlled processing (TMCP) combines controlled rolling with accelerated cooling to achieve superior strength-toughness combinations essential for structural applications.
Manufacturing Process Excellence
Our state-of-the-art production facility utilizes electric arc furnace melting with precise alloy addition control, followed by continuous casting and hot rolling with real-time temperature monitoring. Advanced process control ensures consistent manganese distribution and optimal microstructural development throughout the material cross-section, delivering reliable mechanical properties for critical structural applications.
Specialized Quality Testing
MetalZenith conducts comprehensive testing protocols including AWS D1.1 welding procedure qualification, forming limit diagram analysis for complex shapes, rotating beam fatigue testing up to 10? cycles, and accelerated atmospheric corrosion testing per ASTM G85. These specialized tests ensure optimal performance in demanding structural environments and long-term durability under cyclic loading conditions.
Application-Specific Technical Considerations
For building construction, Mn Steel provides excellent seismic resistance through superior ductility and energy absorption capacity. In bridge engineering, the material's fatigue resistance and atmospheric corrosion performance ensure long service life under dynamic loading. For machinery manufacturing, the combination of strength and formability enables complex component fabrication. In vehicle construction, the steel's crash energy absorption and weight optimization characteristics enhance safety performance while maintaining structural integrity.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 - 0.25 |
| Manganese (Mn) | 1.20 - 1.60 |
| Silicon (Si) | 0.15 - 0.40 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 0.20 - 0.50 |
| Nickel (Ni) | 0.10 - 0.30 |
| Copper (Cu) | 0.20 - 0.40 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 345 - 450 |
| Tensile Strength (MPa) | 480 - 620 |
| Elongation (%) | ≥ 21 |
| Impact Energy at 0°C (J) | ≥ 27 |
| Hardness (HB) | 140 - 180 |
| Fatigue Strength (MPa) | 200 - 250 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1480 - 1520 |
| 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 - 150mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A572, ASTM A36, EN 10025, JIS G3106 |
| Heat Treatment Condition | Hot Rolled, Normalized, or TMCP |
| Surface Finish | Mill Scale, Pickled, Shot Blasted |
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Our Advantages in Processing Mn Steel
Advanced Manganese Optimization Technology
MetalZenith utilizes precision-controlled manganese alloying with advanced thermomechanical processing to achieve optimal grain structure and enhanced work hardening properties. Our controlled rolling and heat treatment processes ensure consistent mechanical properties and superior structural performance throughout the material cross-section.
Comprehensive Structural Performance Testing
Our rigorous testing protocols include specialized assessments for welding performance using AWS standards, forming capability evaluation through bend tests, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance testing. These comprehensive evaluations ensure optimal performance in structural applications.
Custom Structural Solutions & Engineering Support
MetalZenith provides tailored processing solutions including custom heat treatment, precision cutting, and forming services. Our technical team offers comprehensive engineering support for structural design optimization, welding procedure development, and application-specific material selection to meet unique project requirements.
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