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BYP30 (4J45) 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 |
BYP30 | 4J45 | Carpanter G.S.46 Ferrovac 46 Ni Allegheng Alloy 46 Glass4 | Nilo44 Vacodill 46 Ni42 | N48 |
Precision membrane impedance
Synthetic sapphire
Soft glass
Ceramic sealing
Welding electrodes for cast iron
Ni | 44.5~45.5 | 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 | 8.18 g/cm3 (0.293 lb/in3) |
Melting Point | 1430 ℃ (2606 ℉) |
Resistivity | 49 µΩ•cm |
Thermal conduction | 15 W/K |
Elastic modulus | 161 Gpa |