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Technical Specifications
Product Overview
Metallurgical Characteristics
Hadfield Steel exhibits a fully austenitic microstructure at room temperature due to its high manganese content (11-14%). The unique combination of high carbon and manganese creates exceptional work-hardening properties, where the surface hardness increases dramatically under impact or abrasive conditions while maintaining a tough core. The austenitic structure provides excellent impact resistance and prevents brittle failure even at low temperatures.
Heat Treatment Process
MetalZenith employs solution treatment at 1050-1100°C followed by rapid water quenching to achieve optimal austenitic microstructure. This process dissolves carbides and ensures uniform manganese distribution while preventing harmful carbide precipitation during cooling. The rapid quenching rate is critical to maintain the metastable austenitic structure essential for work-hardening behavior.
Advanced Manufacturing Process
Our manufacturing process includes controlled melting in electric arc furnaces with precise alloy addition sequencing, followed by vacuum degassing to minimize inclusions. MetalZenith utilizes specialized casting techniques for complex shapes and controlled forging processes for enhanced grain structure. Post-processing includes stress relief and dimensional stabilization treatments.
Specialized Quality Testing
Comprehensive testing includes work-hardening verification through controlled impact testing, measuring hardness progression from core to work-hardened surface. Welding performance evaluation covers heat-affected zone analysis and post-weld heat treatment optimization. Forming capability assessment includes bend testing and deep drawing evaluation. Fatigue strength testing under high-cycle loading conditions and atmospheric corrosion resistance evaluation in various environmental conditions ensure structural reliability.
Structural Application Engineering
For building construction, Hadfield Steel provides exceptional impact resistance in seismic zones and high-traffic areas. Bridge engineering applications benefit from superior fatigue resistance under dynamic loading and excellent low-temperature toughness. In mechanical manufacturing, the work-hardening properties enable self-strengthening wear surfaces. Vehicle manufacturing utilizes the energy absorption characteristics for crash-resistant structures. General engineering applications leverage the unique combination of toughness, work-hardening, and corrosion resistance for long-service-life structural components.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 1.05 - 1.35 |
| Manganese (Mn) | 11.0 - 14.0 |
| Silicon (Si) | 0.30 - 1.00 |
| Phosphorus (P) | ≤ 0.07 |
| Sulfur (S) | ≤ 0.06 |
| Chromium (Cr) | ≤ 3.0 |
| Nickel (Ni) | ≤ 1.0 |
| Molybdenum (Mo) | ≤ 1.0 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 350 - 450 |
| Tensile Strength (MPa) | 690 - 1030 |
| Elongation (%) | ≥ 45 |
| Impact Energy at 20°C (J) | ≥ 100 |
| Hardness (HB) | 180 - 230 |
| Work-Hardened Hardness (HB) | 450 - 550 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.8 - 8.1 |
| Melting Point (°C) | 1350 - 1400 |
| Thermal Conductivity (W/m·K) | 15.1 |
| Thermal Expansion (×10??/K) | 21.0 |
| Elastic Modulus (GPa) | 200 - 210 |
| Magnetic Permeability | Non-magnetic |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Castings, Forgings, Bars, Custom Shapes |
| Thickness Range | 10 - 200mm |
| Width Range | 500 - 3000mm |
| Length Range | 2000 - 12000mm |
| Standards Compliance | ASTM A128, EN 12513, JIS G5131 |
| Heat Treatment Condition | Solution Treated and Water Quenched |
| Surface Finish | Hot Rolled, Machined, Shot Blasted |
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Our Advantages in Processing Hadfield Steel
Specialized Solution Treatment Process
MetalZenith employs controlled water quenching from 1050°C followed by precise solution treatment to achieve optimal austenitic microstructure. Our advanced thermal processing eliminates carbide precipitation and ensures uniform manganese distribution, maximizing work-hardening potential and impact resistance.
Comprehensive Work-Hardening Testing
Our quality assurance includes specialized work-hardening verification, Charpy impact testing at various temperatures, fatigue strength evaluation under cyclic loading, and atmospheric corrosion resistance testing. Advanced microstructural analysis ensures optimal austenitic grain structure for superior structural performance.
Custom Engineering Solutions
MetalZenith provides tailored Hadfield Steel solutions with custom heat treatment schedules, specialized forming processes, and comprehensive technical support. Our engineering team offers application-specific optimization for heavy construction, mining, and railway structural components.
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