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Technical Specifications
Product Overview
Metallurgical Characteristics
JIS SUS410 is a straight chromium martensitic stainless steel with a body-centered cubic crystal structure. The 12% chromium content provides adequate corrosion resistance while maintaining hardenability. The martensitic structure develops upon cooling from austenitic temperatures, resulting in high strength and hardness capabilities.
Heat Treatment Processes
Annealing: Heat to 850-900°C, hold for appropriate time, then furnace cool to 600°C followed by air cooling. This treatment provides maximum ductility and machinability. Hardening: Austenitize at 950-1000°C, then oil or air quench. Tempering: Reheat to 150-700°C depending on desired hardness and toughness balance.
Manufacturing Process
MetalZenith employs electric arc furnace melting followed by argon oxygen decarburization (AOD) for precise chemistry control. The steel undergoes vacuum degassing to minimize hydrogen and nitrogen content, ensuring superior mechanical properties. Hot rolling is performed above 1050°C with controlled cooling to achieve optimal microstructure.
Quality Standards & Testing
All JIS SUS410 products comply with JIS G4303 standards and undergo comprehensive testing including chemical analysis by optical emission spectroscopy, mechanical testing per JIS Z2241, ultrasonic examination for internal soundness, and dimensional verification. Mill test certificates provide complete traceability and property documentation.
🧪 Chemical Composition
Element | Composition (%) |
---|---|
Carbon (C) | ≤ 0.15 |
Silicon (Si) | ≤ 1.00 |
Manganese (Mn) | ≤ 1.00 |
Phosphorus (P) | ≤ 0.040 |
Sulfur (S) | ≤ 0.030 |
Chromium (Cr) | 11.5 - 13.5 |
Nickel (Ni) | ≤ 0.60 |
Iron (Fe) | Balance |
⚙️ Mechanical Properties
Property | Annealed Condition | Hardened & Tempered |
---|---|---|
Tensile Strength | ≥ 450 MPa | 650-850 MPa |
Yield Strength (0.2% offset) | ≥ 205 MPa | 415-550 MPa |
Elongation (50mm gauge) | ≥ 20% | ≥ 15% |
Reduction of Area | ≥ 50% | ≥ 45% |
Hardness (HB) | ≤ 200 | 220-280 |
Impact Energy (Charpy V-notch) | 27 J (20°C) | 20 J (20°C) |
Fatigue Limit (10&sup7; cycles) | 200 MPa | 280 MPa |
🔬 Physical Properties
Property | Value |
---|---|
Density | 7.70 g/cm³ |
Melting Point | 1480-1530°C |
Specific Heat (20°C) | 460 J/kg·K |
Thermal Conductivity (20°C) | 25 W/m·K |
Thermal Expansion Coefficient (20-100°C) | 10.4×10-6/K |
Electrical Resistivity (20°C) | 0.57 µΩ·m |
Magnetic Permeability | Ferromagnetic |
Modulus of Elasticity | 200 GPa |
Poisson's Ratio | 0.27-0.30 |
📏 Product Specifications
Product Form | Size Range | Standards |
---|---|---|
Round Bars | 6-300mm diameter × 3000-6000mm length | JIS G4303, ASTM A276 |
Square Bars | 10-150mm × 3000-6000mm length | JIS G4303, ASTM A479 |
Flat Bars | 3-100mm thick × 20-300mm wide | JIS G4303, EN 10088-3 |
Sheets | 0.5-6mm thick × 1000-2000mm wide | JIS G4305, ASTM A240 |
Plates | 6-100mm thick × 1500-3000mm wide | JIS G4304, ASTM A240 |
Surface Finish | Hot rolled, Cold rolled, Bright annealed | Ra 0.4-3.2 µm |
Tolerance | h9-h11 for bars, ±0.1mm for sheets | JIS B0401, ISO 2768 |
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Our Advantages in Processing JIS SUS410

Advanced Vacuum Melting Technology
MetalZenith utilizes state-of-the-art vacuum induction melting (VIM) and electroslag remelting (ESR) processes to produce JIS SUS410 with superior cleanliness, reduced inclusions, and enhanced mechanical properties. Our controlled atmosphere melting ensures optimal chemical composition consistency and eliminates harmful gases.
Comprehensive Quality Control System
Our integrated quality management system features real-time monitoring throughout production, including spectroscopic analysis, ultrasonic testing, and mechanical property verification. Every batch is traceable with detailed mill test certificates ensuring full compliance with JIS G4303 and international standards.


Flexible Customization & Global Supply
MetalZenith offers extensive customization capabilities including precision machining, heat treatment services, and custom dimensions. Our global distribution network ensures reliable delivery worldwide, supported by technical expertise and comprehensive after-sales service for optimal material performance.
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