439L Stainless Steel Pipe/Tube Details
Overview
439L stainless steel pipe/tube is a low-carbon, stabilized ferritic stainless steel alloy known for its excellent resistance to corrosion, good formability, and high-temperature performance. It is widely used in applications where both aesthetic and functional qualities are important.
Key Characteristics
Corrosion Resistance: Offers good resistance to oxidation and corrosion, especially in mildly corrosive environments. It is particularly effective against chloride-induced corrosion.
High-Temperature Performance: Maintains good performance at elevated temperatures, making it suitable for heat exchanger tubes and other high-temperature applications.
Formability: Exhibits excellent formability, allowing it to be easily shaped and fabricated into various forms and sizes.
Weldability: Can be welded using standard techniques with good results. Special welding procedures are generally not required.
Magnetic Properties: Magnetic due to its ferritic structure, which can be advantageous for certain applications requiring magnetic characteristics.
Chemical Composition
Carbon (C): ≤ 0.03%
Manganese (Mn): 0.50-1.00%
Silicon (Si): ≤ 1.00%
Phosphorus (P): ≤ 0.040%
Sulfur (S): ≤ 0.030%
Chromium (Cr): 17.00-19.00%
Nickel (Ni): ≤ 0.50%
Titanium (Ti): 0.10-0.50%
Common Applications
Automotive Exhaust Systems: Used in automotive exhaust systems, including catalytic converters and mufflers, due to its high-temperature performance and corrosion resistance.
Heat Exchangers: Suitable for heat exchangers and other high-temperature applications where good thermal conductivity and corrosion resistance are required.
Architectural Features: Employed in architectural applications, such as decorative elements and exterior cladding, where both aesthetic appeal and durability are important.
Home Appliances: Applied in kitchen appliances and other household items where good formability and corrosion resistance are important.
Advantages
Good Corrosion Resistance: Provides reliable protection against oxidation and corrosion, 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: Offers a balance of performance and affordability, making it a practical choice for various applications.
Magnetic Properties: Useful in applications that benefit from magnetic characteristics.
Summary
439L stainless steel pipe/tube is a low-carbon, stabilized 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 variety of applications, including automotive exhaust systems, heat exchangers, architectural features, and home appliances. With its combination of durability, formability, and cost-effectiveness, 439L stainless steel is a reliable choice for applications requiring moderate to high performance.
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