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Technical Specifications
Product Overview
Metallurgical Characteristics
JIS SUS316 is an austenitic stainless steel with a face-centered cubic crystal structure that provides excellent ductility and toughness. The addition of molybdenum (2-3%) significantly enhances corrosion resistance, particularly against chloride-induced pitting and crevice corrosion. The balanced chromium-nickel composition ensures stable austenitic structure at room temperature and excellent work hardening characteristics.
Manufacturing Process
MetalZenith employs advanced electric arc furnace (EAF) melting followed by argon oxygen decarburization (AOD) refining to achieve precise chemical composition control. The steel undergoes vacuum degassing to minimize hydrogen and nitrogen content, ensuring superior mechanical properties. Hot rolling is performed at temperatures between 1150-1250°C, followed by solution annealing at 1050-1100°C and rapid cooling to prevent carbide precipitation.
Heat Treatment Specifications
Solution annealing is performed at 1050-1100°C followed by rapid cooling in water or air to achieve optimal corrosion resistance and mechanical properties. This treatment dissolves carbides and ensures homogeneous austenitic microstructure. Cold working can increase strength significantly, with yield strength reaching up to 1000 MPa in heavily cold-worked conditions.
Quality Standards & Testing
All JIS SUS316 products manufactured by MetalZenith comply with JIS G4303 standards and undergo comprehensive testing including chemical analysis by optical emission spectroscopy, mechanical property verification through tensile and hardness testing, and corrosion resistance evaluation. Ultrasonic testing and magnetic particle inspection ensure internal soundness and surface integrity. Each batch is supplied with complete mill test certificates and traceability documentation.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 16.00 - 18.00 |
| Nickel (Ni) | 10.00 - 14.00 |
| Molybdenum (Mo) | 2.00 - 3.00 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation (50mm gauge) | ≥ 40% |
| Reduction of Area | ≥ 60% |
| Hardness (Brinell) | ≤ 217 HB |
| Hardness (Rockwell B) | ≤ 95 HRB |
| Impact Energy (Charpy V-notch, 20°C) | ≥ 120 J |
| Fatigue Limit (10&sup7; cycles) | 240 MPa |
| Young's Modulus | 200 GPa |
| Shear Modulus | 81 GPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (20°C) | 8.00 g/cm³ |
| Melting Point | 1375-1400°C |
| Thermal Expansion Coefficient (20-100°C) | 16.0×10-6/K |
| Thermal Expansion Coefficient (20-300°C) | 16.8×10-6/K |
| Thermal Conductivity (20°C) | 16.3 W/m·K |
| Thermal Conductivity (100°C) | 18.3 W/m·K |
| Specific Heat Capacity (20°C) | 500 J/kg·K |
| Electrical Resistivity (20°C) | 0.74 µΩ·m |
| Magnetic Permeability | 1.02 (Non-magnetic) |
| Poisson's Ratio | 0.27-0.30 |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round bars, square bars, flat bars, sheets, plates, tubes, pipes, wire, forgings |
| Round Bar Diameter | 6mm - 300mm |
| Sheet/Plate Thickness | 0.5mm - 100mm |
| Tube Outer Diameter | 6mm - 219mm |
| Standard Length | 3000mm, 6000mm, 12000mm (custom lengths available) |
| Surface Finish | Hot rolled, cold drawn, bright annealed, pickled, polished (2B, BA, No.4, No.8) |
| Tolerance Standards | JIS G4303, ASTM A276, EN 10088-3 |
| Applicable Standards | JIS G4303, JIS G4304, JIS G4305, ASTM A240, ASTM A276, EN 10088 |
| Heat Treatment Condition | Solution annealed (1050-1100°C), rapid cooling |
| Quality Certifications | Mill Test Certificate, EN 10204 3.1, NACE MR0175, PED 2014/68/EU |
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Our Advantages in Processing JIS SUS316
Advanced Vacuum Melting Technology
MetalZenith utilizes state-of-the-art vacuum induction melting (VIM) and electroslag remelting (ESR) processes to produce JIS SUS316 with exceptional chemical homogeneity and minimal inclusion content. Our controlled atmosphere melting ensures superior corrosion resistance and mechanical properties.
Comprehensive Quality Control System
Our ISO 9001:2015 certified quality management system includes 100% chemical composition verification, mechanical property testing, and advanced non-destructive examination. Every product batch comes with complete mill test certificates and traceability documentation.
Custom Processing & Global Supply
MetalZenith offers extensive customization capabilities including precision machining, specialized heat treatments, and custom dimensions. Our global distribution network ensures reliable delivery worldwide with comprehensive technical support and engineering consultation services.
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