Thank You for Your Attention on Beiye!
BYP31 (4J47) has the similar linear expansion coefficient with soft glasses in a range of temperature. Similar alloy's names in different trademark systems:
Beiye | China Standard | America | Germany | France |
BYP31 | 4J47 | Alloy 48 Class3 | Ni48 Ni49 | Fe-Ni48 |
Sealing alloys for soft glasses
Insulator
| Ni | 46.8~47.8 | Fe | bal. |
Cr | 0.8~1.4 |
| 25℃-400℃ | 8.1~8.7 (α, 10-6℃-1) |
Tensile Strength | Soft | Hard |
<590 MPa (85.6 ksi) | >700 Mpa (101.5 ksi) | |
Hardness | Deep-drawing State: ≤190HV | |
Gain Size | Deep-drawing State: ≥Level 7 |
| Density | 8.19 g/cm3 (0.296 lb/in3) |
| Resistivity | 55 µΩ•cm |
Thermal conduction | 20 W/K |
Elastic modulus | 145 Gpa |
