Glass Recommendations for Dumet
Glass for Copper-Clad Nickel-Iron 42 Alloy Hermetic Seal
|Composition:||Copper Clad 42 Alloy|
|Coefficient of Thermal Expansion:||Radial: 92 x 10-7 / °C Axial: 65 x 10-7 / °C|
|Seal Type||Recommended Elan Glass||Equivalent Glasses|
|Compression||11 or 05||9010
Dumet is a nickel-iron alloy core with copper cladding. The outer copper layer helps ensure stronger seal as well as reduces bubbling. With the radial expansion of 9.2ppm, Dumet matches very well with Elan 13.