Thank You for Your Attention on Beiye!
BYP44 (4J50) has a certain linear expansion coefficient in a range of temperature. Similar alloy's names in different trademark systems:
Beiye | China Standard | America | Germany | France | Japan |
BYP44 | 4J50 | Carpanfer G.S.49 Carpanfer G.E.49 Alloy 52 Glass2 | Vacovit 50 Vacovit 51 FeNi50 NiFe47 | N50RL N50 Fe-Ni50 | NS-1 NS-2 50FN Fe-50Ni |
Passive layer of thermal bimetals
Dry reed or mercury wetted relay
Soft glass sealing
Precision membrane impedance
Precision length measuring
Ni | 49.5~50.5 | Fe | bal. |
25℃-300℃ | 6.5~7.2 |
25℃-400℃ | 6.5~7.2 (α, 10-6℃-1) |
Tensile Strength | Soft | Hard |
<590 MPa (85.6 ksi) | >700 Mpa (101.5 ksi) | |
Hardness | Thickness | Deep-drawing State |
>0.2~2.5mm | ≤165HV | |
>2.5mm | ≤170HV | |
Gain Size | Deep-drawing State: ≥Level 7 |
Density | 8.12 g/cm3 (0.293 lb/in3) |
Melting Point | 1430 ℃ (2606 ℉) |
Resistivity | 44 µΩ•cm |
Thermal conduction | 17 W/K |
Elastic modulus | 161 Gpa |
