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Invar 42 - Aspire Alloys

Invar 42 - UNS K94300, ASTM A553, DIN 1.3917, EN AW-42

Invar 42

Invar 42 is a nickel-iron alloy similar to Invar 36, but with a slightly higher nickel content. It is known for its low coefficient of thermal expansion (CTE), making it an excellent choice for applications requiring high dimensional stability under temperature changes. Invar 42 is widely used in precision instruments, aerospace, and optical industries.

Due to its exceptional low-expansion properties, Invar 42 is an ideal material for high-precision devices and systems where temperature fluctuations can affect performance, including control systems, measuring instruments, and engineering systems.

Invar 42 Plates & Sheets

Invar 42 plates and sheets are used in applications requiring high dimensional stability, such as in precision measurement devices and thermal control systems in various industries.

Invar 42 Round Bars

Invar 42 round bars are used in aerospace and high-performance engineering applications where low thermal expansion is essential, ensuring dimensional stability in extreme temperature conditions.

Invar 42 Flanges

Invar 42 flanges are used in high-precision applications, offering superior dimensional stability in environments where temperature variations are common.

Invar 42 Fittings

Invar 42 fittings are employed in systems where temperature-induced dimensional changes must be minimized, ensuring consistent long-term performance.

Invar 42 Tubes & Pipes

Invar 42 tubes and pipes are used in manufacturing precision components for systems that demand minimal thermal expansion and stability under varying temperatures.

Invar 42 Fasteners

Invar 42 fasteners are used in systems where dimensional stability under temperature fluctuations is crucial, maintaining the overall reliability of the system.

Applications of Invar 42

  • Aerospace: Used in satellites, spacecraft, and other precision instruments where low thermal expansion is essential.
  • Optical: Ideal for optical equipment where precision is critical, and temperature changes must not affect performance.
  • Measuring Devices: Commonly used in the construction of high-precision measurement instruments and devices.
  • Engineering Systems: Applied in systems where high dimensional stability under fluctuating temperatures is necessary.

Chemical Composition of Invar 42

  • Nickel (Ni): 42.0% - 44.0%
  • Iron (Fe): Balance
  • Cobalt (Co): 0.4% max
  • Chromium (Cr): 0.25% max
  • Manganese (Mn): 0.30% max
  • Carbon (C): 0.05% max
  • Sulfur (S): 0.01% max
  • Phosphorus (P): 0.01% max