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Technical Specifications
Product Overview
Metallurgical Characteristics
EN19 is a low-alloy structural steel with a tempered martensitic microstructure achieved through controlled quenching and tempering processes. The balanced addition of chromium, molybdenum, and nickel provides enhanced hardenability and improved mechanical properties throughout the cross-section, ensuring consistent performance in structural applications.
Heat Treatment Process
MetalZenith employs precision heat treatment involving austenitizing at 840-860°C followed by oil quenching and tempering at 550-650°C. This controlled process optimizes the balance between strength and toughness, ensuring superior structural performance and dimensional stability.
Manufacturing Excellence
Our advanced manufacturing process includes controlled forging, precise heat treatment, and comprehensive quality testing. MetalZenith utilizes state-of-the-art furnaces with automated temperature control and protective atmospheres to ensure consistent metallurgical properties and minimize oxidation.
Structural Performance Testing
EN19 steel undergoes rigorous testing including welding performance evaluation using standard procedures, forming capability assessment through bend tests, fatigue strength analysis under cyclic loading, and atmospheric corrosion resistance testing. These comprehensive evaluations ensure reliability in demanding structural environments.
Application Engineering
For building construction, EN19 provides excellent load-bearing capacity and seismic resistance. In bridge engineering, its superior fatigue strength ensures long-term durability under dynamic loading. For machinery manufacturing, the steel offers optimal wear resistance and dimensional stability. In automotive applications, EN19 delivers exceptional crashworthiness and component reliability, while general engineering benefits from its versatile processing characteristics and consistent quality.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.36 - 0.44 |
| Manganese (Mn) | 0.70 - 1.00 |
| Silicon (Si) | 0.10 - 0.40 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Chromium (Cr) | 1.00 - 1.40 |
| Molybdenum (Mo) | 0.20 - 0.35 |
| Nickel (Ni) | 0.30 - 0.70 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 775 |
| Tensile Strength (MPa) | 925 - 1175 |
| Elongation (%) | ≥ 12 |
| Impact Energy at 20°C (J) | ≥ 35 |
| 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) | 42.6 |
| Thermal Expansion (×10??/K) | 11.5 |
| 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 | 16 - 300mm |
| Thickness Range | 10 - 150mm |
| Length Range | 3000 - 12000mm |
| Standards Compliance | BS 970 Grade 709M40, ASTM A322, DIN 1.5132 |
| Heat Treatment Condition | Quenched and Tempered |
| Surface Finish | Hot Rolled, Cold Drawn, Machined |
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Our Advantages in Processing EN19 Steel
Advanced Heat Treatment Processing
MetalZenith utilizes precision-controlled quenching and tempering processes with real-time temperature monitoring to achieve optimal hardness and toughness balance. Our advanced heat treatment ensures consistent mechanical properties throughout the material cross-section, delivering superior structural performance.
Comprehensive Structural Testing
Our EN19 steel undergoes extensive testing including welding performance evaluation, forming capability assessment, fatigue strength analysis, and atmospheric corrosion resistance testing. This comprehensive approach ensures reliability in demanding structural applications across construction and engineering sectors.
Custom Engineering Solutions
MetalZenith provides tailored processing services including precision machining, custom heat treatment cycles, and application-specific forming. Our technical team offers expert consultation for structural design optimization and material selection to meet specific project requirements.
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