Inquiries

Products Menu

Home > Products Menu > 42%Ni-Fe

42%NiFe 42alloys

42%Ni-Fe

Related standardsASTM F-30 equivalent (UNS K94100)

ApplicationsSemiconductor lead frames, piezoelectric diaphragms, sealing materials, etc.

Nickel-iron alloy for lead frames with superior stamping workability and etching workability.

This alloy possesses superior dimensional accuracy such as plate thickness accuracy and flatness.
The dimension is very stable with little shape variation even after forming on lead frames.
Due to its superior surface cleanliness, plated films have great adhesion to 42%Ni-Fe.
In addition, the oxide film generated during sealing is dense and has excellent adhesion to oxides such as glass.
42%Ni-Fe is very compatible with the package because its thermal expansion coefficient is low and close to that of silicon and ceramics.

Chemical composition

[wt%]

Ni Fe
Typical values 41 Rem.

Physical properties

Melting point [℃] 1425
Curie point [℃] 375
Density [g/cm3@20℃] 8.2
Thermal expansion coefficient
[10-6/K@30-300℃]
4.2
Thermal conductivity
[W/m・K@20℃]
14.7
Volume resistivity [μΩ・m] 0.55
Young’s modulus [kN/mm2] 145

*Please note that the values in all the tables are reference values and are subject to change without notice.

Mechanical properties

Temper Tensile strength(typical value)
[N/mm2]
Elongation(typical value)
[%]
Vickers hardness(typical value)
[HV]
A
(0.25mmt)
515 35 135
1/2H
(0.10mmt)
700 9 210

To order products or to request more infomation about our products, please use one of the following options:

Inquiries

Email form for questions, arranging a consultation, requesting quote, etc.

+81-53-453-4221

9 AM to 5 PM daily except for weekends and holidays

Phone number for questions, arranging a consultation, requesting quote, etc.