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Technical Specifications
Product Overview
Metallurgical Characteristics
EN24 steel exhibits a tempered martensitic microstructure with fine carbide precipitation, achieved through controlled quenching and tempering processes. The nickel-chromium-molybdenum alloying system provides excellent hardenability and toughness, while maintaining high strength levels essential for structural applications. The balanced alloy composition ensures uniform mechanical properties throughout thick sections.
Heat Treatment Process
MetalZenith employs controlled austenitizing at 850-870°C followed by oil quenching to achieve optimal hardness. Subsequent tempering at 550-650°C develops the required strength-toughness balance. Our precise temperature control and cooling rate management ensure consistent mechanical properties and minimize residual stresses critical for structural integrity.
Manufacturing Excellence
Our EN24 production utilizes electric arc furnace melting with secondary refining processes including ladle metallurgy and vacuum degassing. Controlled forging operations with optimized reduction ratios ensure excellent grain structure and mechanical property uniformity. Advanced non-destructive testing including ultrasonic inspection guarantees internal soundness.
Structural Performance Testing
MetalZenith conducts comprehensive testing protocols including Charpy V-notch impact testing at various temperatures, rotating beam fatigue testing, weldability assessments using standard procedures, and accelerated atmospheric corrosion testing. Our forming performance evaluation includes bend testing and cold working assessments to ensure suitability for structural fabrication processes.
Engineering Applications
EN24's exceptional strength-to-weight ratio makes it ideal for building structural frameworks requiring high load-bearing capacity. In bridge engineering, its fatigue resistance ensures long-term durability under cyclic loading. For automotive applications, the material's toughness and machinability enable complex component geometries. In heavy machinery, EN24 provides reliable performance under extreme operational stresses while maintaining dimensional stability.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.36 - 0.44 |
| Manganese (Mn) | 0.45 - 0.70 |
| Silicon (Si) | 0.10 - 0.40 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Nickel (Ni) | 1.30 - 1.70 |
| Chromium (Cr) | 1.00 - 1.40 |
| Molybdenum (Mo) | 0.20 - 0.35 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 775 |
| Tensile Strength (MPa) | 925 - 1175 |
| Elongation (%) | ≥ 12 |
| Impact Energy at 20°C (J) | ≥ 47 |
| Hardness (HB) | 280 - 340 |
| Fatigue Strength (MPa) | 450 - 500 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1420 - 1460 |
| Thermal Conductivity (W/m·K) | 42.7 |
| Thermal Expansion (×10??/K) | 12.3 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Round Bars, Square Bars, Flat Bars, Plates, Forgings |
| Diameter Range | 10 - 500mm |
| Thickness Range | 5 - 200mm |
| Length Range | 1000 - 12000mm |
| Standards Compliance | BS 970 Grade 817M40, ASTM A322, DIN 1.6511 |
| Heat Treatment Condition | Quenched and Tempered |
| Surface Finish | Black, Turned, Ground, Polished |
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Our Advantages in Processing EN24 Steel
Precision Heat Treatment Technology
MetalZenith utilizes advanced controlled atmosphere furnaces with precise temperature monitoring and automated quenching systems to achieve optimal hardness distribution in EN24 steel. Our proprietary tempering process ensures consistent mechanical properties and enhanced structural integrity throughout the material thickness.
Comprehensive Structural Testing
Our EN24 steel undergoes extensive testing including Charpy impact testing, fatigue strength evaluation, welding performance assessment, and atmospheric corrosion resistance testing. MetalZenith's advanced testing protocols ensure superior performance in structural applications with documented compliance to international standards.
Custom Engineering Solutions
MetalZenith provides tailored EN24 steel solutions with custom heat treatment specifications, precision machining services, and comprehensive technical support. Our engineering team collaborates with clients to optimize material properties for specific structural applications and performance requirements.
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