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Technical Specifications
Product Overview
Metallurgical Characteristics
High Alloy Steel features a complex microstructure consisting of tempered martensite with fine carbide precipitates. The strategic addition of chromium, nickel, and molybdenum enhances hardenability and provides solid solution strengthening, while maintaining excellent toughness through controlled tempering processes. The fine-grained structure achieved through controlled cooling ensures optimal strength-toughness balance.
Heat Treatment Process
MetalZenith employs precision quenching at 850-900°C followed by controlled tempering at 580-650°C to achieve optimal mechanical properties. Our advanced heat treatment facilities ensure uniform heating, controlled atmosphere processing, and precise cooling rates to minimize distortion while maximizing strength and toughness characteristics.
Manufacturing Excellence
MetalZenith's manufacturing process incorporates electric arc furnace melting with secondary refining, continuous casting, and controlled rolling to ensure chemical homogeneity and microstructural uniformity. Our advanced process control systems monitor temperature, composition, and cooling rates throughout production to guarantee consistent high-strength properties.
Specialized Quality Testing
Comprehensive testing protocols include formability assessment through bend testing and hole expansion tests, weldability evaluation with thermal simulation, hydrogen-induced cracking resistance testing per NACE standards, and delayed fracture testing under sustained loading conditions. These specialized tests ensure reliable performance in critical high-strength applications.
Application-Specific Considerations
For automotive applications, the steel provides excellent crash energy absorption and weight reduction benefits. In building construction, superior strength enables reduced section sizes and enhanced seismic resistance. Bridge engineering applications benefit from exceptional fatigue resistance and long-term durability. Lifting equipment applications leverage the high strength-to-weight ratio for improved load capacity, while pressure vessel applications utilize the excellent fracture toughness and hydrogen resistance properties.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.25 - 0.35 |
| Manganese (Mn) | 1.20 - 1.80 |
| Silicon (Si) | 0.20 - 0.60 |
| Chromium (Cr) | 1.00 - 2.50 |
| Nickel (Ni) | 0.50 - 1.50 |
| Molybdenum (Mo) | 0.15 - 0.50 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.015 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 550 |
| Tensile Strength (MPa) | 750 - 950 |
| Elongation (%) | ≥ 16 |
| Impact Toughness at -20°C (J) | ≥ 35 |
| Fatigue Strength (MPa) | 320 - 380 |
| Hardness (HRC) | 22 - 32 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 7.85 |
| Melting Point (°C) | 1480 - 1520 |
| Thermal Conductivity (W/m·K) | 42.5 |
| Thermal Expansion (×10⁻⁶/K) | 11.8 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.28 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Rods, Forgings, Tubes |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A514, EN 10025-6, JIS G3106 |
| Heat Treatment Condition | Quenched and Tempered |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
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Our Advantages in Processing High Alloy Steel
Advanced Vacuum Degassing Technology
MetalZenith utilizes advanced vacuum degassing and controlled atmosphere processing to minimize inclusions and optimize alloy distribution. Our precision-controlled cooling rates and thermomechanical processing ensure consistent microstructure and superior mechanical properties throughout the material cross-section.
Comprehensive High-Strength Testing
MetalZenith conducts extensive testing protocols including formability assessment, weldability evaluation, hydrogen-induced cracking resistance, and delayed fracture testing. Our advanced testing ensures optimal performance in demanding applications requiring exceptional strength and reliability.
Custom Engineering Solutions
MetalZenith provides tailored heat treatment schedules, custom alloy compositions, and specialized processing to meet specific application requirements. Our technical team offers comprehensive support for material selection, processing optimization, and application-specific performance validation.
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