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 China Glass Ceramic Inc. Glass | Equivalent Glasses | ||
|---|---|---|---|---|
| Corning | GE | Kimble | ||
| Matched | 11 or 05 | 9010 9013 | TM-7 TM-5 
 
 R-6 | |
| Compression | 13 | 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. | ||||
