INVAR®

INVAR®

INVAR®

INVAR® is a FeNi36 alloy with s a very low coefficient of thermal expansion. The coefficient is of virtually zero at temperatures ranging from cryogenic to ambient. It has a very low coefficient of thermal expansion from -100°C to +200°C).
This is a key alloy in many applications requiring of course a very low CTE but also good workability and weldability. 

Imphy research engineers and engineers’ knowledge about FeNi36  and other iron nickel alloys have been published in a book. This is “the Iron Nickel Alloys”, edited by Tec & Doc Lavoisier. It is a registered trademark by Aperam Alloys Imphy.

INVAR® obtains the Physics  Nobel Prize 1920 : https://www.nobelprize.org/prizes/physics/1920/summary/ 

INVAR® for oled technology learn more

 

Applications

  • SFD (Special Flat Displays) for OLED fine masks,
  • Echoboxes and filters for mobile telephone
  • Liquid gas transport, cryogeny
  • Moulds for composite components
  • Piezoelectric injectors
  • Relay stations
  • Space and detection devices
INVAR®

Norms

  • 1.3912
  • K93600
  • K93601
  • K93603
  • DIN1715
  • SEW385
  • ASTM A658
  • ASTM F1684

Chemical Composition

FeNi36

 

 

 

These data are indicative values and correspond to our standard product. Different specific requirements are subject to discussion and formal approval by Aperam Alloys Imphy. For further information or special request, please contact us.

Forms

  • Bar
  • Cold rolled strip
  • Plate
  • Wire rod
  • Drawn & flat wire

From IMPHY SERVICE

“Add this product to your basket” to request a quote:

  • Cold drawn bars: diameter from 4 to 20 mm
  • Hot rolled bars: diameter from 20 to 160 mm
  • Forged bars: diameter from 150 mm
  • Plates:
  • 6,35 x  2000 x 6000 mm
  • 9,52 x  2000 x 6000 mm
  • 12,7  x  2000 x 6000 mm
  • 15,88 x  2000 x 6000 mm
  • 19,05 x  2000 x 6000 mm
  • 25,4 x  2000 x 6000 mm
  • 30 x  2000 x 6000 mm
  • 35 x  2000 x 6000 mm
  • 38,10 x  2000 x 6000 mm
  • 40 x  2000 x 6000 mm
  • 45 x  2000 x 6000 mm
  • 50,8 x  2000 x 6000 mm
  • 63,5 x  2000 x 6000 mm
  • 69,85 x  2000 x 6000 mm
  • 76,2 x  2000 x 6000 mm
  • 82,55 x  2000 x 6000 mm
  • Cutting Plates, on request

 

 

 

Download

Whether you need a certificate or more information, you can download all our product brochures, specifications, e-books, and related materials here.
INVAR®
Hydrogen Applications
IATF 16949 - AAIMPHY
EN 9100 - AAIMPHY
ISO 14001 - AAIMPHY
COFRAC - AAIMPHY
ISO 9001 - AAIMPHY

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