AISI 439L Stainless Steel Pipe S43900 1.4521

439L Stainless Steel Pipe Details

Overview

439L stainless steel pipe 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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Common surfaces

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