Glass Recommendations for No. 52 Alloy

Glass for Hermetic Seal with No. 52 Nickel-Iron Alloy

Designation: ASTMF-30
Composition: 52% Nickel, Balance Iron
Coefficient of Thermal Expansion: 95 x 10-7 / °C
Seal Type Recommended Elan Glass Equivalent Glasses
  Corning GE Kimble
Matched 11 or 05

13 or 09

26

65

82

9010

9013

  TM-7

TM-5

 

 

R-6

Compression 13

14 or 21

19

28

46

88

7052

 

7070

706 EN-1

IN-3

KG-33

Material Summary:

No. 52 alloy is the quintessential go-to alloy for compression sealing pins. It has 52% nickel with iron balance. Its linear expansion up to 525 °C that closely matches that of soft glasses makes it an ideal candidate for Elan 13 and stainless steel housing in a wide range of applications from microwave switches to aerospace electronic seals.

Additional Resources:

Wikipedia: Properties of Nickel Alloys

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