Glass Recommendations for No. 4 Alloy

Glass for Nickel-Chromium Ferrous Alloy

Designation:  
Composition: 42% Nickel, 5.5% Chromium, Balance Iron
Coefficient of Thermal Expansion: 90 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

48

88

7052

 7070

706 EN-1

IN-3

IN-3

Material Summary:

No. 4 alloy is a nickel-chromium-ferrous alloy that offers excellent chemical resistance. Another notable characteristic is the chrome oxide layer which provides superior bonding strength. Using No.4 alloy pin with stainless steel housing and Elan 13 or 48 glass creates a strong hermetic compression seal.

Additional Resources:

Wikipedia: Properties of Nickel-Chromium Alloys

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