Nickel Iron Alloy

Iron-nickel or nickel-iron alloys, abbreviated as FeNi or NiFe, are a group of alloys composed primarily of the elements nickel (Ni) and iron (Fe).
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What is nickel-iron alloy?

Nickel-iron or iron-nickel alloys are a group of alloys consisting mainly of nickel and iron.

The nickel-iron (NiFe) family of alloys 42, 46, 48 and 49 exhibit low thermal expansion properties over a range of temperatures and are ideal for controlled expansion applications.

Adding 42, 46, 48 and 49% nickel to iron reduces the coefficient of thermal expansion, making these alloys suitable for medical applications, electronics, aerospace engineering, telecommunications and cryogenic components.

nickel-iron alloy products

nickel iron alloy

Characteristics of nickel-iron alloys

● Low coefficient of thermal expansion

● Low thermal expansion characteristics over a range of temperatures

● Easy to process

● Capable of forming in hot or cold conditions

● High inflection point

Applications of nickel-iron alloys

Nickel-iron alloy series, 42, 46, 48 and 49, for applications requiring low thermal expansion and dimensional stability, including:

Electronic components and leadframes

Metal-to-glass or metal-to-ceramic sealing materials

Semiconductor packaging

Molds for aerospace composites

Cathode ray tube electron guns

Microelectronic components


Automotive and industrial lights

Telecommunications and mobile devices

Our Service/Why Choose Us

(1)Fast delivery time, good quality and reasonable price

(2)We can process different finished products according to your requirements

(3)High production volume will shorten your waiting time

(4)Accept the buyer's specification

(5)Experienced R&D department

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