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Technical Specifications
Product Overview
Metallurgical Characteristics
High Chromium Steel features a tempered martensitic microstructure with fine carbide precipitation, providing exceptional strength-to-weight ratio and superior wear resistance. The elevated chromium content (11.5-14.0%) forms stable chromium carbides that enhance hardenability and provide excellent corrosion resistance while maintaining high strength properties.
Heat Treatment Process
MetalZenith employs controlled austenitizing at 950-1000°C followed by oil or water quenching and precise tempering at 580-650°C. Our computer-controlled heat treatment ensures optimal strength-toughness balance and uniform mechanical properties throughout the cross-section.
Advanced Manufacturing Process
Our production process includes vacuum degassing, controlled rolling with precise temperature control, and multi-stage heat treatment. MetalZenith's advanced processing eliminates segregation and ensures homogeneous chromium distribution, resulting in superior mechanical properties and enhanced fatigue resistance.
Specialized Quality Testing
MetalZenith conducts comprehensive testing including forming performance evaluation using Erichsen cupping tests, welding performance assessment with HAZ hardness mapping, hydrogen-induced cracking resistance testing per NACE TM0284, and delayed fracture analysis under sustained loading conditions.
Application-Specific Technical Considerations
For automotive manufacturing, our High Chromium Steel provides excellent crash energy absorption and weight reduction potential. In building construction, the material offers superior seismic resistance and long-term durability. Bridge engineering applications benefit from enhanced fatigue resistance and corrosion protection. Lifting equipment applications leverage the high strength-to-weight ratio and excellent wear resistance. Pressure vessel applications utilize the superior creep resistance and hydrogen embrittlement resistance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 - 0.25 |
| Chromium (Cr) | 11.5 - 14.0 |
| Manganese (Mn) | 0.40 - 0.70 |
| Silicon (Si) | 0.20 - 0.60 |
| Molybdenum (Mo) | 0.15 - 0.30 |
| Nickel (Ni) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.015 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 550 |
| Tensile Strength (MPa) | 750 - 950 |
| Elongation (%) | ≥ 15 |
| Impact Toughness at 20°C (J) | ≥ 35 |
| Fatigue Strength (MPa) | ≥ 320 |
| Hardness (HRC) | 22 - 32 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.75 |
| Melting Point (°C) | 1480 - 1520 |
| Thermal Conductivity (W/m·K) | 25.1 |
| Thermal Expansion (×10??/K) | 10.3 |
| Elastic Modulus (GPa) | 200 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Forgings, Structural Sections |
| Thickness Range | 8 - 150mm |
| Width Range | 1200 - 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 Chromium Steel
Advanced Vacuum Melting Technology
MetalZenith utilizes state-of-the-art vacuum induction melting and electroslag remelting processes to achieve optimal chromium homogeneity and ultra-low inclusion content. Our controlled atmosphere processing ensures consistent mechanical properties and enhanced fatigue resistance critical for high-strength applications.
Comprehensive High-Strength Testing Protocol
Our specialized testing program includes forming performance evaluation, advanced welding qualification testing, hydrogen-induced cracking resistance assessment, and delayed fracture analysis. MetalZenith's rigorous quality assurance ensures reliable performance in demanding structural applications.
Customized Processing Solutions
MetalZenith offers tailored heat treatment schedules, precision machining, and custom forming services to meet specific application requirements. Our technical support team provides comprehensive engineering assistance for optimal material selection and processing optimization.
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