439 Stainless Steel Pipe/Tube Details
Overview
439 stainless steel pipe/tube is a ferritic stainless steel alloy known for its good corrosion resistance, formability, and high-temperature performance. It is commonly used in applications where moderate to high corrosion resistance is required, along with durability and ease of fabrication.
Key Characteristics
Corrosion Resistance: Provides good resistance to oxidation and corrosion, particularly in mildly corrosive environments. It is suitable for applications exposed to acidic or alkaline conditions.
High-Temperature Performance: Maintains strength and resistance to oxidation at elevated temperatures, making it suitable for high-temperature applications.
Formability: Excellent formability allows it to be easily shaped and fabricated into various forms and sizes.
Weldability: Can be welded using standard techniques with good results. Generally, no special procedures are required compared to other ferritic grades.
Magnetic Properties: Magnetic due to its ferritic structure, which is advantageous for certain applications requiring magnetic characteristics.
Chemical Composition
Carbon (C): ≤ 0.03%
Manganese (Mn): 0.50-0.80%
Silicon (Si): ≤ 1.00%
Phosphorus (P): ≤ 0.040%
Sulfur (S): ≤ 0.030%
Chromium (Cr): 16.00-18.00%
Nickel (Ni): ≤ 0.75%
Common Applications
Automotive Exhaust Systems: Used in automotive exhaust systems, including mufflers and catalytic converters, where moderate corrosion resistance and high-temperature performance are required.
Industrial Equipment: Applied in various industrial equipment and machinery that operates in moderately corrosive or high-temperature environments.
Architectural Features: Suitable for architectural applications and decorative elements exposed to outdoor conditions.
Home Appliances: Employed in kitchen appliances and other household items where good formability and corrosion resistance are important.
Advantages
Good Corrosion Resistance: Offers reliable performance in mildly corrosive environments, making it suitable for automotive, industrial, and architectural applications.
High-Temperature Resistance: Maintains strength and resistance to oxidation at elevated temperatures, suitable for high-temperature environments.
Excellent Formability: Easily fabricated into different shapes and sizes, allowing for versatile manufacturing and design options.
Cost-Effective: Provides a balance of performance and affordability, making it a practical choice for various applications.
Summary
439 stainless steel pipe/tube is a ferritic stainless steel known for its good corrosion resistance, high-temperature performance, and excellent formability. Its chemical composition and properties make it suitable for a range of applications, including automotive exhaust systems, industrial equipment, architectural features, and home appliances. With its combination of durability, formability, and cost-effectiveness, 439 stainless steel is a reliable choice for applications requiring moderate to high performance.
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