Invar Alloy Applications

(Also know as Invar 36, NILO 36, Pernifer 36, and Invar Steel)

Invar Alloy is a low expansion alloy that exhibits extremely low expansion around ambient temperatures and is often used where minimum expansion is required. Invar is a Nickel Iron alloy with 36% Nickel, and the remaining balance Iron. Its minimal expansion over ambient temperatures, makes this alloy useful in many applications especially where high dimensional stability is required Some of the applications of Invar Alloy include:

• Positioning devices
• Bimetal thermostats
• Advanced composite molds for aerospace industry
• Dimensionally stable instruments and optical devices
• Containers for LNG tankers
• Transfer lines for LNG
• Echo boxes and filters for mobile telephones
• Magnetic shielding
• Small electrical transformers
• Metrology devices
• Scientific instruments
• Electrical circuit breakers
• Temperature regulators
• Clock balance wheels
• Pendulum clocks
• Precision condenser blades
• Radar and microwave cavity resonators
• Special electronic housings
• Seals, spacers, and specialized frames
• High voltage transmission lines
• CRT applications: shadow masks, deflection clips, and electron gun components

Are you using Invar Alloy for an application other than any of those listed above? If so, we’d like to hear from you. Please call one of our customer service experts. We may be able to assist you with your Invar Alloys needs, or we may be able to introduce you to some of the other metals and alloys we stock.