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BYP43 Controlled-Expansion Alloy
Overview of BYP43 Controlled-Expansion Alloy
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BYP43 has the similar linear expansion coefficient with soft glasses from room temperature to 400℃, and can seal glasses well.


invar thermal expansion

The Typical Applications of This Alloy are

  • Anode cap of TV picture tube


Typical Chemical Composition in Percent

Ni

46.5~48.5

Fe

bal.

Cr

5.9~6.3

Al

0.2~0.3


Typical Linear Expansion Coefficient

25℃-400℃

9.9~10.6 (α, 10-6-1)


Typical Mechanical Properties

Hardness

110~150HV

Grain Size

7.0~10


Typical Physical Properties

Density

8.18 g/cm3 (0.296 lb/in3)

Resistivity

90 µΩ•cm

Thermal conduction

18 W/K

Elastic modulus

163 Gpa



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