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Nickel Alloy 400, also known as UNS N04400, is a highly versatile alloy composed primarily of nickel with a significant copper content. This unique alloy is particularly known for its exceptional resistance to corrosion, making it an ideal choice for various demanding environments. In this product introduction, we will explore the physical properties of Nickel Alloy 400 in the annealed condition, particularly at temperatures ranging from -20°F to +100°F, while also referencing industry standards and specifications.

Physical Properties

The properties of Nickel Alloy 400 in its annealed condition are critical for applications where strength and durability are paramount. Below are the key physical properties:

• Tensile Strength: The minimum tensile strength of Nickel Alloy 400 is 70,000 psi (480 MPa), making it suitable for high-stress applications.
• Yield Strength: The yield strength of the alloy is 28,000 psi (195 MPa), essential for ensuring operational safety in structural applications.
• Elongation: The alloy exhibits a minimum elongation of 28% in 2 inches, which is indicative of its ductility and ability to undergo deformation without fracture.
• Grain Size Requirement: The maximum hardness is not provided, but Nickel Alloy 400 is known for its consistency in mechanical properties.
• Modulus of Elasticity: The modulus of elasticity is approximately 26 x 10^6 psi, which indicates a relatively high stiffness for the material.
• Thermal Expansion and Conductivity: The alloy has a mean coefficient of thermal expansion of 7.7 x 10^-6 IN./IN./°F and thermal conductivity of 168 BTU-in/ft²-h-°F, reflecting good thermal performance.

These properties are critical for various industrial applications, including heat exchangers, piping systems, and marine environments where resistance to extreme conditions is crucial.

Chemical Composition

The chemical composition of Nickel Alloy 400 is primarily characterized by its nickel content, with a minimum of 63.0% nickel (Ni) and a copper content ranging from 28.0% to 34.0%. The following table summarizes its elemental composition:

The low content of other alloying elements such as chromium and molybdenum highlights Nickel Alloy 400's specific design for enhanced corrosion resistance and moderate stress levels.

Applications and Industry Standards

Nickel Alloy 400 is widely used across various industries due to its unique properties. Industries such as chemical processing, oil and gas, marine, and aerospace frequently employ this alloy in components that require excellent corrosion protection and heat resistance.

The following specifications apply to Nickel Alloy 400:

• ASTM B725 and ASTM B730: These are the recognized standards governing the specifications for Nickel Alloy 400 concerning its mechanical properties and chemical composition.

According to the requirements set forth in these industry standards, the alloy must meet certain mechanical property benchmarks to ensure reliability across applications. This compliance guarantees that products made from Nickel Alloy 400 perform well in both standardized and extreme conditions—making it a dependable choice for engineers and designers.

Conclusion

In summary, Nickel Alloy 400 (UNS N04400) offers a compelling combination of mechanical strength, ductility, and corrosion resistance, especially in environments subjected to extreme temperatures ranging from -20°F to +100°F. Its chemical composition, characterized by a high percentage of nickel and copper, imparts unique properties suitable for critical applications across multiple industries.

For professionals seeking materials that provide both performance and reliability, Nickel Alloy 400 stands out as an exemplary choice, backed by respected industry standards and proven performance in various applications. Whether for heat exchangers, piping systems, or marine applications, this alloy is prepared to meet the challenges presented by modern industrial environments. For more information on sourcing Nickel Alloy 400 or to discuss specific applications, contact your trusted materials supplier.