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BYP2 (4J6a) has the similar linear expansion coefficient with soft glasses from room temperature to 400℃, and can seal glasses well. This specific property forms the basis for its designation as controlled expansion alloys, a specialized member of the expansion alloys family. Similar alloy's names in different trademark systems:
Beiye | China Standard | America | Germany | France | Japan |
BYP2 | 4J6a | Class6 Sylvania 4 Sealmet 4 Carpanter 426 ASTM F31 MIL-l-23011C | Vacovit Nicr 426 | ASV NF A54-301 Fe-Ni 426Cr | NRS1 SNC NCK 426 EMAS-1002 Fe-42Ni-6Cr |
Array of vacuum fluorescent display
Soldering terminal
| Ni | 41.5~42.5 | Fe | bal. |
Cr | 5.4~6.2 |
| 25℃-400℃ | 9.5~10.2 (α, 10-6℃-1) |
Hardness | ≥200HV |
Density | 8.15 g/cm3 (0.294 lb/in3) |
| Resistivity | 92 µΩ•cm |
Thermal conduction | 13 W/K |
Elastic modulus | 150 Gpa |
