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Technical Specifications
Product Overview
Metallurgical Characteristics
EN 1.4462 exhibits a balanced duplex microstructure consisting of approximately 50% austenite and 50% ferrite phases. This unique dual-phase structure provides exceptional strength-to-weight ratio and superior resistance to stress corrosion cracking compared to conventional austenitic stainless steels. The high chromium, molybdenum, and nitrogen content ensures excellent pitting and crevice corrosion resistance in chloride environments.
Heat Treatment Process
Solution annealing is performed at 1020-1100°C followed by rapid cooling in water or air to maintain optimal duplex microstructure. MetalZenith's controlled cooling process prevents harmful intermetallic phase precipitation while ensuring proper ferrite-austenite balance. Post-weld heat treatment at 1050°C may be applied for stress relief in welded components.
Manufacturing Process Excellence
MetalZenith employs advanced vacuum induction melting (VIM) technology to achieve superior chemical homogeneity and cleanliness. Our thermomechanical controlled processing (TMCP) ensures optimal grain refinement and mechanical properties. Hot working is performed between 950-1150°C, while cold working capabilities allow for enhanced strength through controlled deformation.
Quality Standards & Testing
All EN 1.4462 products undergo comprehensive testing including chemical analysis by optical emission spectroscopy, mechanical testing per ASTM A370, ferrite content measurement using magnetic methods, and corrosion testing according to ASTM G48. Ultrasonic testing, magnetic particle inspection, and dimensional verification ensure complete quality compliance. Material certificates include full traceability documentation and third-party inspection reports.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 21.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 2.5 - 3.5 |
| Nitrogen (N) | 0.08 - 0.20 |
| Copper (Cu) | ≤ 0.50 |
| Tungsten (W) | ≤ 0.50 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | ≥ 640 MPa |
| Yield Strength 0.2% (Rp0.2) | ≥ 450 MPa |
| Elongation (A5) | ≥ 25% |
| Hardness (HRC) | ≤ 31 |
| Hardness (HB) | ≤ 290 |
| Impact Energy (KV) at -40°C | ≥ 60 J |
| Young's Modulus | 200 GPa |
| Fatigue Limit (107 cycles) | 320 MPa |
| Ferrite Content | 40-60% |
| PREN Value | ≥ 35 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.8 g/cm³ |
| Melting Point | 1350-1400°C |
| Thermal Conductivity (20°C) | 14 W/m·K |
| Thermal Conductivity (100°C) | 16 W/m·K |
| Thermal Expansion (20-100°C) | 13×10-6/K |
| Thermal Expansion (20-300°C) | 14×10-6/K |
| Specific Heat Capacity | 500 J/kg·K |
| Electrical Resistivity (20°C) | 0.85 µΩ·m |
| Magnetic Permeability | 1.5-2.0 |
| Poisson's Ratio | 0.28 |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round bars, flat bars, plates, sheets, tubes, pipes, forgings, flanges |
| Round Bar Diameter | 6mm - 300mm |
| Flat Bar Dimensions | 10×3mm - 200×50mm |
| Plate Thickness | 3mm - 100mm |
| Sheet Thickness | 0.5mm - 6mm |
| Tube Outer Diameter | 6mm - 219mm |
| Standards | EN 10088, ASTM A240, A479, A790, JIS G4305, GB/T 1220 |
| Surface Finish | Hot rolled, cold rolled, 2B, BA, No.4, hairline, mirror |
| Tolerance | ±0.1mm to ±0.5mm (depending on form and size) |
| Length | Standard: 6m, Custom: up to 12m |
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Our Advantages in Processing EN 1.4462
Advanced Vacuum Melting Technology
MetalZenith employs cutting-edge vacuum induction melting (VIM) and electroslag remelting (ESR) processes to achieve exceptional chemical homogeneity and purity in EN 1.4462 production. Our controlled atmosphere melting eliminates inclusions and ensures optimal duplex microstructure with balanced austenite-ferrite phases.
Comprehensive Quality Control System
Our integrated quality management system features real-time process monitoring, automated chemical analysis, and advanced metallurgical testing. Every heat of EN 1.4462 undergoes rigorous testing including PREN calculation, ferrite content measurement, and corrosion resistance evaluation to guarantee consistent performance.
Global Supply Chain & Customization
MetalZenith maintains strategic inventory locations worldwide and offers extensive customization capabilities for EN 1.4462. From precision machining to specialized heat treatments, we provide tailored solutions with flexible delivery schedules to meet specific project requirements and tight deadlines.
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