AISI 444 Stainless Steel Tube SUS444 1.4521

444 Stainless Steel Pipe/Tube Details

Overview

444 stainless steel pipe/tube is a ferritic stainless steel alloy known for its excellent corrosion resistance, particularly in environments with high levels of chlorides. It is often used in applications requiring enhanced corrosion resistance and durability, particularly in harsh or aggressive environments.

Key Characteristics

Superior Corrosion Resistance: Offers exceptional resistance to corrosion, particularly in chloride environments, making it suitable for applications exposed to seawater or other saline conditions.

High Oxidation Resistance: Maintains good resistance to oxidation at elevated temperatures, allowing it to perform well in high-temperature applications.

Formability: Good formability allows it to be easily shaped and fabricated into various forms and sizes.

Magnetic Properties: Magnetic due to its ferritic structure, which can be advantageous for specific applications requiring magnetic properties.

Weldability: Can be welded using standard techniques, though proper procedures should be followed to ensure weld quality and performance.

Chemical Composition

Carbon (C): ≤ 0.030%

Manganese (Mn): 1.00%

Silicon (Si): ≤ 1.00%

Phosphorus (P): ≤ 0.040%

Sulfur (S): ≤ 0.030%

Chromium (Cr): 16.00-18.00%

Nickel (Ni): ≤ 0.75%

Titanium (Ti): 0.20-0.60%

Common Applications

Marine Environments: Used in marine applications such as boat hulls, offshore platforms, and coastal infrastructure where high resistance to corrosion is essential.

Industrial Equipment: Applied in industrial equipment and machinery that operates in corrosive or high-temperature environments.

Architectural Applications: Suitable for architectural features and decorative elements exposed to harsh weather conditions.

Chemical Processing: Employed in chemical processing equipment where resistance to aggressive chemicals and high temperatures is required.

Advantages

Excellent Corrosion Resistance: Provides superior protection against corrosion, particularly in chloride-rich environments, making it ideal for marine and coastal applications.

High Oxidation Resistance: Performs well at elevated temperatures, maintaining strength and resistance to oxidation.

Good Formability: Easily fabricated into various shapes and sizes, allowing for versatile use in manufacturing processes.

Cost-Effective: Offers a combination of high performance and affordability, making it a practical choice for demanding applications.

Summary

444 stainless steel pipe/tube is a ferritic stainless steel known for its excellent corrosion resistance, particularly in chloride-rich environments, and high oxidation resistance at elevated temperatures. Its chemical composition and properties make it suitable for a range of applications, including marine environments, industrial equipment, architectural features, and chemical processing. With its combination of enhanced corrosion resistance, formability, and cost-effectiveness, 444 stainless steel is a reliable choice for applications requiring superior performance in harsh conditions.

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Common Surfaces

Stainless Steel Standards Comparison Table