Email Us
BYP27 (4J42k) Controlled-Expansion Alloy
Overview of BYP27 (4J42k) Controlled-Expansion Alloy
Request A Quote +

BYP27 (4J42k) is suitable for lead frame of large scale integrated circuits and other electronic components. Similar alloy's names in different trademark systems:

Beiye

China Standard

BYP27

4J42k



kovar thermal expansion

The Typical Applications of This Alloy are

  • Mobile phones

  • Digital camera

  • Laptop

  • DVD recorder

  • Telecommunication equipment

  • Office automation equipment


Typical Chemical Composition in Percent


Ni

40.0~42.5

Fe

bal.



Typical Linear Expansion Coefficient


25℃-300℃

4.0~4.7

25℃-450℃

6.7~7.4 (α, 10-6-1)



Typical Mechanical Properties


Hardness

185~220 HV

Tensile Strength

588~735 MPa (85.2~106.6 ksi)

Elongation

5~20%



Typical Physical Properties

Density

8.12 g/cm3 (0.293 lb/in3)

Melting Point

1430 ℃ (2606 ℉)

Resistivity

64 µΩ•cm

Thermal conduction

16 W/K

Elastic modulus

150 Gpa



Thank You for Your Attention on Beiye!
Thank You for Your Attention on Beiye!
Contact Us
Add:
No.1, Qinghe Xiaoying East Road, Haidian District, Beijing City, P.R. China
Build the Future with Steel
Add:
No.1, Qinghe Xiaoying East Road, Haidian District, Beijing City, P.R. China