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Technical Specifications
Product Overview
Metallurgical Characteristics
High Manganese Steel exhibits a fully austenitic microstructure at room temperature due to its high manganese content (11-14%). The unique combination of carbon and manganese creates exceptional work hardening characteristics, where the surface hardness can increase from 200 HB to over 500 HB under impact or abrasive conditions. This austenitic structure provides excellent toughness and ductility while maintaining high strength properties essential for demanding structural applications.
Heat Treatment Process
MetalZenith employs solution annealing at 1050-1100°C followed by rapid water quenching to achieve optimal austenitic microstructure. This process dissolves carbides and ensures uniform manganese distribution throughout the matrix. Our controlled cooling process prevents carbide precipitation and maintains the desired austenitic structure, maximizing impact resistance and work hardening potential.
Advanced Manufacturing Process
MetalZenith utilizes electric arc furnace melting with precise alloy addition control and vacuum degassing to ensure optimal chemical composition and cleanliness. Our advanced casting techniques minimize segregation and ensure uniform properties throughout the material. Specialized forming operations are performed at controlled temperatures to maintain austenitic structure integrity.
Specialized Quality Testing
Our comprehensive testing protocol includes forming performance evaluation using deep drawing and stretch forming tests, specialized welding procedure qualification for austenitic structures, hydrogen-induced cracking resistance testing under cathodic protection conditions, and delayed fracture assessment through sustained load testing. Advanced microstructural analysis ensures optimal austenitic grain structure and carbide distribution.
Application-Specific Technical Considerations
For automotive manufacturing, our High Manganese Steel provides exceptional energy absorption in crash structures while maintaining formability for complex geometries. In building construction, the material offers superior seismic resistance and long-term durability. Bridge engineering applications benefit from excellent fatigue resistance and work hardening under dynamic loading. Lifting equipment applications utilize the exceptional impact resistance and strength retention. Pressure vessel construction leverages the material's excellent fracture toughness and resistance to hydrogen embrittlement in demanding service environments.
🧪 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) | ≤ 0.03 |
| Chromium (Cr) | 1.5 - 2.5 |
| Nickel (Ni) | 0.5 - 1.5 |
| Molybdenum (Mo) | 0.2 - 0.8 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 380 - 450 |
| Tensile Strength (MPa) | 690 - 1050 |
| Elongation (%) | 35 - 50 |
| Impact Energy at 20°C (J) | ≥ 150 |
| Fatigue Strength (MPa) | 280 - 350 |
| Hardness (HB) | 180 - 220 |
| Work Hardening Rate | High (300-500 HB) |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.8 - 8.1 |
| Melting Point (°C) | 1350 - 1400 |
| Thermal Conductivity (W/m·K) | 16.3 |
| Thermal Expansion (×10??/K) | 21.0 |
| Elastic Modulus (GPa) | 200 - 210 |
| Magnetic Permeability | Non-magnetic (Austenitic) |
📏 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, ASTM A356, EN 1.3401 |
| Heat Treatment Condition | Solution Annealed, Water Quenched |
| Surface Finish | Hot Rolled, Machined, Polished |
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Our Advantages in Processing High Manganese Steel
Precision Austenitic Microstructure Control
MetalZenith utilizes advanced controlled casting and specialized solution annealing processes with precise temperature control to achieve optimal austenitic grain structure. Our proprietary processing ensures uniform manganese distribution and maximizes work hardening potential, delivering exceptional strength-to-weight ratios and superior impact resistance.
Comprehensive High-Strength Testing Protocol
MetalZenith implements extensive testing protocols specifically designed for high-strength applications, including advanced forming performance analysis, specialized welding compatibility testing, hydrogen-induced cracking resistance evaluation, and delayed fracture assessment. Our rigorous testing ensures optimal performance in demanding structural applications.
Custom Engineering & Technical Support
MetalZenith provides comprehensive custom processing services including precision heat treatment optimization, specialized forming operations, and application-specific property enhancement. Our metallurgical experts offer dedicated technical support for complex high-strength applications, ensuring optimal material performance for each unique requirement.
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