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BYP29 (4J43) has a certain linear expansion coefficient in a range of temperature, a critical property for controlled expansion alloys that ensures dimensional stability in demanding environments. This predictable behavior makes it a reliable choice among specialized thermal expansion alloys for high-precision applications. Similar alloy's names in different trademark systems:
Beiye | China Standard | America | Japan |
BYP29 | 4J43 | ASTM F29 Dumet | Dumas No.1 |
Sealing alloys for glasses
Outgoing line of bulb and electronic valve
| Ni | 41.0~43.0 | Fe | bal. |
Mn | 0.75~1.25 |
| 25℃-400℃ | 6.3~7.2 |
For a reliable controlled-expansion solution with BYP29 (4J43), contact Beiye for our professional precision alloy and supply.
