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Technical Specifications
Product Overview
Metallurgical Characteristics
Ferritic Stainless Steel exhibits a body-centered cubic (BCC) crystal structure with chromium content ranging from 10.5% to 18%. The ferritic microstructure provides excellent resistance to stress corrosion cracking and maintains magnetic properties. The absence of nickel makes this grade cost-effective while providing good corrosion resistance in oxidizing environments.
Heat Treatment Process
MetalZenith employs controlled annealing at 750-850°C followed by rapid cooling to prevent carbide precipitation and maintain optimal corrosion resistance. Our specialized heat treatment process includes stress relief annealing and controlled cooling rates to minimize grain growth and optimize mechanical properties.
Manufacturing Process
Our advanced manufacturing process includes vacuum induction melting, continuous casting, and controlled hot rolling with precise temperature control. MetalZenith's state-of-the-art annealing and pickling lines ensure superior surface quality and corrosion resistance. Final passivation treatment enhances the protective oxide layer formation.
Specialized Quality Testing
MetalZenith conducts comprehensive testing including pitting potential measurement in 3.5% NaCl solution, ASTM A262 Practice A intergranular corrosion testing, stress corrosion cracking evaluation in boiling MgCl2 solution, and passivation film thickness analysis using ellipsometry. These tests ensure optimal performance in corrosive environments.
Application-Specific Considerations
For chemical equipment applications, our ferritic stainless steel provides excellent resistance to nitric acid and organic acids. In food industry applications, the material meets FDA requirements with superior cleanability and hygiene properties. Medical device applications benefit from biocompatibility and sterilization resistance. Marine applications utilize the excellent chloride resistance, while architectural applications leverage the aesthetic appeal and low maintenance requirements.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 10.5 - 18.0 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Nickel (Ni) | ≤ 0.60 |
| Molybdenum (Mo) | 0.75 - 1.25 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 275 |
| Tensile Strength (MPa) | 415 - 585 |
| Elongation (%) | ≥ 20 |
| Hardness (HRB) | ≤ 88 |
| Corrosion Rate (mm/year) | < 0.1 in mild environments |
| Pitting Potential (mV) | > 200 vs SCE |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.70 - 7.80 |
| Melting Point (°C) | 1425 - 1510 |
| Thermal Conductivity (W/m·K) | 25.0 at 100°C |
| Thermal Expansion (×10??/K) | 10.4 at 20-100°C |
| Electrical Resistivity (μΩ·cm) | 60 at 20°C |
| Elastic Modulus (GPa) | 200 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Sheets, Plates, Coils, Bars, Tubes, Wire |
| Thickness Range | 0.4 - 50mm |
| Width Range | 600 - 2000mm |
| Length Range | 2000 - 6000mm |
| Standards Compliance | ASTM A240, EN 10088, JIS G4305 |
| Surface Finish | 2B, BA, No.4, HL, Mirror |
| Heat Treatment Condition | Annealed and Pickled |
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Our Advantages in Processing Ferritic Stainless Steel
Advanced Vacuum Melting Technology
MetalZenith utilizes state-of-the-art vacuum induction melting with precise temperature control and controlled atmosphere processing to achieve optimal chromium distribution and minimize inclusions. Our advanced metallurgical processes ensure consistent grain structure and superior corrosion resistance throughout the material.
Comprehensive Corrosion Testing
MetalZenith conducts extensive corrosion testing including pitting potential measurement, ASTM A262 intergranular corrosion testing, stress corrosion cracking evaluation in chloride environments, and passivation film thickness analysis using XPS technology. Our rigorous testing ensures optimal corrosion performance in service conditions.
Custom Processing & Technical Support
MetalZenith offers comprehensive custom processing services including precision annealing, surface finishing, and specialized heat treatments. Our metallurgical engineers provide technical support for application-specific requirements, ensuring optimal performance in chemical, food, medical, and marine applications.
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