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Technical Specifications
Product Overview
Metallurgical Characteristics
Nitro V exhibits a fully austenitic microstructure with enhanced nitrogen content that provides solid solution strengthening and improved pitting resistance. The controlled nitrogen addition creates a more stable austenitic phase, preventing sigma phase formation and maintaining excellent ductility. The optimized chromium-nickel balance ensures superior corrosion resistance while the nitrogen enhancement significantly improves mechanical properties without compromising formability.
Heat Treatment Process
MetalZenith employs solution annealing at 1050-1100°C followed by rapid water quenching to achieve optimal microstructural characteristics. The controlled heating rate and precise temperature control prevent carbide precipitation and ensure complete dissolution of secondary phases. Post-annealing pickling removes heat tint and establishes the passive oxide layer essential for corrosion resistance.
Advanced Manufacturing Process
Our manufacturing process begins with vacuum induction melting under controlled nitrogen atmosphere, followed by argon oxygen decarburization (AOD) refining to achieve precise chemical composition. Hot rolling is performed within strict temperature ranges to maintain austenitic structure, followed by intermediate annealing and cold rolling to achieve desired mechanical properties and surface finish.
Specialized Quality Testing
MetalZenith conducts comprehensive testing including pitting potential measurement in 3.5% NaCl solution, intergranular corrosion testing per ASTM A262 Practice A, stress corrosion cracking evaluation in boiling MgCl2 solution, and passivation film thickness analysis using ellipsometry. Additional testing includes ferrite content verification, grain size analysis, and surface roughness measurement to ensure compliance with food-grade and pharmaceutical standards.
Application-Specific Technical Considerations
For chemical processing applications, Nitro V provides excellent resistance to chloride-induced pitting and crevice corrosion. In food industry applications, the enhanced nitrogen content prevents bacterial adhesion and facilitates cleaning. Medical device applications benefit from the material's biocompatibility and resistance to sterilization processes. Marine environments require the superior pitting resistance provided by nitrogen enhancement, while architectural applications utilize the material's aesthetic appeal and long-term durability.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 17.0 - 19.0 |
| Nickel (Ni) | 8.0 - 10.5 |
| Nitrogen (N) | 0.15 - 0.25 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 350 |
| Tensile Strength (MPa) | 650 - 850 |
| Elongation (%) | ≥ 40 |
| Hardness (HRB) | 85 - 95 |
| Pitting Potential (mV vs SCE) | ≥ 350 |
| Impact Energy at 20°C (J) | ≥ 200 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.95 |
| Melting Point (°C) | 1400 - 1450 |
| Thermal Conductivity (W/m·K) | 16.2 |
| Thermal Expansion (×10??/K) | 17.3 |
| Electrical Resistivity (μΩ·cm) | 72 |
| Elastic Modulus (GPa) | 200 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Tubes, Forgings, Wire |
| Thickness Range | 0.5 - 80mm |
| Width Range | 1000 - 2500mm |
| Length Range | 2000 - 12000mm |
| Standards Compliance | ASTM A240, AISI 304N, EN 1.4315 |
| Surface Finish | 2B, BA, No.4, Mirror, Pickled |
| Heat Treatment Condition | Solution Annealed and Pickled |
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Our Advantages in Processing Nitro V Steel
Advanced Nitrogen Enhancement Technology
MetalZenith utilizes controlled nitrogen injection during vacuum induction melting to achieve optimal nitrogen content in Nitro V steel. Our precise atmospheric control and temperature monitoring ensure uniform nitrogen distribution, resulting in enhanced strength, improved pitting resistance, and superior mechanical properties throughout the material.
Comprehensive Corrosion Testing Protocol
Our specialized testing laboratory conducts extensive corrosion evaluation including pitting potential measurement (>350mV vs SCE), ASTM A262 intergranular corrosion testing, stress corrosion cracking assessment in chloride environments, and passivation film thickness analysis using XPS technology to ensure maximum corrosion resistance performance.
Precision Custom Processing Services
MetalZenith offers comprehensive custom processing including precision machining, specialized heat treatment cycles, surface finishing to Ra 0.1μm, and dimensional tolerances to ±0.05mm. Our technical support team provides application-specific recommendations for chemical processing, food industry, and medical device manufacturing requirements.
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