Alloy 42 is a 41% nickel-iron controlled expansion alloy which has been used in a wide variety of glass-to-metal sealing applications.
While the expansion properties of this alloy most closely match 1075 glass, it has also been used in seals for the 0120 and 0010 glasses. It may also be used with hard glasses if a thin edged tubular seal is used. For seals that are not hydrogen annealed prior to sealing, a variation of this alloy containing small additions fo titanium, Glass Sealing 42 Gas-Free, has been used to promote gas-free sealing characteristics. Alloy 42 has been used for the glass-to-metal seals in electronic tubes, automotive and industrial lamps, transformer and capacitor bushings and other glass-to-metal and ceramic-to-metal applications.
ALLOY | SIZE | WEIGHT |
---|---|---|
CURRENT PLATE INVENTORY | ||
Invar 42 | 0.250 X 39.375 X 61.000 6.35MM X 1000.125 X 1549.4 | 314 LBS 142 KG |
Invar 42 | 0.250 X 48.000 X 192.000 6.35MM X 1219.2 X 4876.8 | 2233 LBS 1013 KG |
Invar 42 | 0.375 X 48.000 X 5.000 9.525MM X 1219.2 X 127 | 30 LBS 14 KG |
Invar 42 | 0.375 X 48.000 X 143.750 9.525MM X 1219.2 X 3651.25 | 1509 LBS 684 KG |
Invar 42 | 0.500 X 48.000 X 33.750 12.7MM X 1219.2 X 857.25 | 319 LBS 145 KG |
Invar 42 | 0.760 X 48.000 X 144.000 19.304MM X 1219.2 X 3657.6 | 3262 LBS 1480 KG |
Invar 42 | 1.010 X 48.000 X 144.000 25.654MM X 1219.2 X 3657.6 | 3235 LBS 1467 KG |
Invar 42 | 1.500 X 48.000 X 4.250 38.1MM X 1219.2 X 107.95 | 94 LBS 43 KG |
Invar 42 | 1.500 X 48.000 X 144.000 38.1MM X 1219.2 X 3657.6 | 3184 LBS 1444 KG |