What is Invar 36 Nickel-iron Alloy?
Invar 36 is an iron-based nickel alloy with 36 % nickel. A special feature of this material is its low coefficient of thermal expansion below its Curie temperature of 280°C. It maintains nearly constant dimensions at temperatures below -150°C (-238°F) all the way up to 260°C (500°F) which is critical to cryogenics. Invar 36 Nickel-iron …
