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Technical Specifications
Product Overview
Metallurgical Characteristics
EN 1.4307 is an austenitic stainless steel with a face-centered cubic crystal structure that provides excellent ductility and toughness. The low carbon content (≤ 0.030%) minimizes carbide precipitation, ensuring superior intergranular corrosion resistance and weldability. The balanced chromium-nickel composition creates a stable austenitic matrix with exceptional corrosion resistance in various environments.
Heat Treatment Process
MetalZenith applies solution annealing at 1050-1100°C followed by rapid cooling to achieve optimal microstructure. This heat treatment dissolves carbides and ensures uniform austenitic grain structure. Cold working can increase strength significantly, while maintaining excellent formability. Stress relief annealing at 400-450°C may be applied for dimensional stability in precision applications.
Manufacturing Process
Our production process begins with electric arc furnace melting followed by argon oxygen decarburization (AOD) for precise composition control. Hot rolling at 1150-950°C develops the desired mechanical properties, while cold rolling achieves final dimensions and surface quality. MetalZenith's advanced pickling and passivation processes ensure optimal corrosion resistance and surface finish.
Quality Standards & Testing
All EN 1.4307 products undergo comprehensive testing including chemical analysis by optical emission spectroscopy, mechanical property verification through tensile and hardness testing, and corrosion resistance evaluation. Non-destructive testing methods including ultrasonic inspection and eddy current testing ensure internal quality. MetalZenith maintains full traceability from raw materials through final inspection, providing complete documentation and certification compliance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 17.50 - 19.50 |
| Nickel (Ni) | 8.00 - 10.50 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 520 - 670 MPa |
| Yield Strength (Rp0.2) | ≥ 205 MPa |
| Elongation (A5) | ≥ 45% |
| Hardness (HRB) | ≤ 92 |
| Hardness (HV) | ≤ 200 |
| Impact Energy (KV) | ≥ 120 J (at 20°C) |
| Young's Modulus | 200 GPa |
| Fatigue Limit | 245 MPa (10&sup7; cycles) |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 8.00 g/cm³ |
| Melting Point | 1400 - 1450°C |
| Thermal Expansion Coefficient (20-100°C) | 16.0×10-6/K |
| Thermal Expansion Coefficient (20-300°C) | 17.0×10-6/K |
| Thermal Conductivity (20°C) | 15 W/m·K |
| Specific Heat Capacity | 500 J/kg·K |
| Electrical Resistivity (20°C) | 0.73 µΩ·m |
| Magnetic Permeability | 1.02 µr (max) |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Sheets, Plates, Bars, Rods, Tubes, Pipes, Coils, Strips |
| Sheet Thickness | 0.3 - 6.0 mm |
| Plate Thickness | 6.0 - 100 mm |
| Bar Diameter | 6 - 300 mm |
| Tube Outer Diameter | 6 - 219 mm |
| Surface Finishes | 2B, BA, No.4, HL, Mirror, Pickled |
| Standards Compliance | EN 10088, ASTM A240/A276/A312, JIS G4303/G4304 |
| Dimensional Tolerance | ±0.1 mm (thickness), ±1.0 mm (width/length) |
| Edge Condition | Mill Edge, Slit Edge, Sheared Edge |
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Our Advantages in Processing EN 1.4307
Advanced Vacuum Melting Technology
MetalZenith employs state-of-the-art vacuum induction melting (VIM) and electroslag remelting (ESR) processes to produce EN 1.4307 with exceptional purity and homogeneity. Our advanced refining techniques ensure precise control of carbon content below 0.030%, delivering superior weldability and corrosion resistance compared to standard production methods.
Comprehensive Quality Control System
Our integrated quality management system features real-time chemical composition monitoring, automated dimensional inspection, and advanced non-destructive testing capabilities. MetalZenith's certified laboratory conducts complete mechanical property verification, ensuring every batch of EN 1.4307 meets or exceeds international standards with full material traceability documentation.
Flexible Customization & Global Supply
MetalZenith offers extensive customization options for EN 1.4307, including specialized surface finishes, precision tolerances, and custom dimensions. Our global supply chain network ensures reliable delivery worldwide, while our technical engineering team provides application-specific material optimization and comprehensive technical support throughout the project lifecycle.
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