Invar Alloy Annealing Heat Treating

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

Annealing Invar
Heat the Invar Alloy to 1450°F (790°C) and hold heat for 30 minutes per inch of thickness then air cool. Heating to temperatures above 1000°F (538°C) relieves the presence of cold work stresses. The higher the temperature used, the lower the annealed hardness will be.

Heat Treating Invar for Lowest Optimal Dimensional Stability
For the optimal dimensional stability, the recommended heat treating method for Invar Alloy is to heat at 1500°F (815°C) for 30 minutes per inch of thickness, water quench and reheat to 600°F (316°) for 1 hour, followed by air cooling.

Ed Fagan Inc. also stocks a variety of similar alloys for low expansion, controlled expansion, glass-to-metal or ceramic sealing applications that may also satisfy your needs. EFI carries
• Kovar (also known as ASTM F-15, NILO K, Pernifer 2918, Rodar, and Dilvar P1)
• 42 Alloy
• 42-6 Alloy
• 46 Alloy
• 48 Alloy
• 52 Alloy
and we also have a large selection of Electronic Nickel grades such as
• 200
• 201
• 205
• 233
• 270

Buy Invar Alloy Now

Look to Ed Fagan Inc. when you need Controlled Expansion Alloys like Invar (Invar 36, NILO 36, Pernifer 36 and Invar Steel); Super Invar; Kovar (ASTM F-15, Pernifer 2918, Dilvar P1, Rodar, NILO K); 42, 42-6, 48 & 52 Alloy; or Nickel Grades 200, 201, 205, 233, or 270. EFI offers Just-in-Time-Delivery, so all standard stock items can be shipped within 24 hours, and all materials can be certified with shipment. No Order Too Small!

Pernifer is a Trademark of ThyseenKrupp-VDM Germany. Invar and Dilvar are Trademarks of Imphy Alloys France. NILO is a Trademark of Special Metals Corporation, USA.