Invar 36 Wire is a nickel-iron low-expansion alloy with 36% nickel and a rate of thermal expansion around one-tenth that of carbon steel. Invar 36 Wire has approximately consistent dimensions over the usual temperature range and a low coefficient of expansion from cryogenic temperatures to around 500°F. This nickel-iron alloy is robust, adaptable, and strong at cryogenic temperatures.
Invar 36 Wire is a solid single-phase alloy composed mostly of nickel and iron. Because of its low coefficient of expansion, Nickel Alloy 36 retains good strength and toughness at cryogenic temperatures. It retains essentially constant dimensions at temperatures ranging from -150°C (-238°F) to 260°C (500°F), which is critical in cryogenics.
Wire Applications Invar 36
- Controls for aircraft
- Laser and optical systems
- Radios and other electrical devices
- Forming tools and dies for composites
- Components of cryogenics
Advantages of Invar 36 Wire Material
Invar 36 is weldable using Filler Metal CF26 and may be hot and cold-shaped and machined using procedures similar to austenitic stainless steels.
- Excellent dimensional stability
- Numerous characteristics of usability
- Extremely low thermal expansion coefficient
Invar 36 Wire and Thermal Expansion Coefficient
Invar low-expansion alloys are well-known and commonly used due to their near-zero coefficient of thermal expansion (CTE). Because of its advantageous property, UNS K93600 is one of the most effective alloys for the manufacture of precision instrumentation. Because of its low CTE, alloy 36 is widely regarded as the metal of choice for any form of low-expansion application.
