The Materials You Need When You Need Them
Soft Magnetic Alloys
Radiometal 4550
VIM VAR Core Iron
Hiperco 50
EFI Alloy 79
EFI Alloy 50

Some of these alloys are sometimes referred to as Magnifer, High Permeability 49, HyMu 80, Hipernom, Moly-Permalloy, and Permalloy 80.
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Controlled Expansion Alloys
Invar
Kovar
42 Alloy
42-6 Alloy
48 Alloy
52 Alloy

Some of these alloys are sometimes referred to as NILO, Pernifer, Dilvar, and Glass-Seal.
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Electrical/Electronic Nickel
Nickel Grades 200, 201, 205, 233, & 270
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Refractory Metals and Alloys
Molybdenum
Tungsten
Tantalum
Niobium
Rhenium
TZM Molybdenum
Tungsten Alloy

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Hard to Find
Use our Material Locator service for hard to find materials for the Aerospace/Aviation, Defence, Electronics, Magnetic, Medical, Lighting, Optical, Telecommunications, Ceramics, Heat Treating, and other high-technology industries.
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Controlled Expansion Alloys

For applications where metals must form a hermetic seal with glass or ceramic (e.g. vacuum tubes, lamps, power tubes, etc.); or applications where a specific expansion must be met over a certain temperature range (e.g. optoelectronics, optical and laser benches, etc.).

Ed Fagan Europe Ltd. stocks:

 

Invar

Invar3 is a low expansion alloy, consisting of 36% Nickel, balance Iron. This alloy exhibits extremely low expansion around ambient temperatures and is often used where minimum expansion is required. Invar was originally used for surveying tapes. The name Invar is a variant of Invariant, a reference to it’s low expansion charachteristics. Invar is also known as Invar 361, NILO 364, Invar Steel and Pernifer 362.

Kovar

ASTM F-15 Alloy, commonly known as Kovar1, is a controlled expansion alloy consisting of 29% Nickel, 17% Cobalt, and balance Iron. Kovar is produced to ensure good properties for machining and deep drawing as well as porosity free product. Its expansion characteristics match both borosilicate (Pyrex) glasses and alumina ceramics. It is one of the most popular of the controlled expansion alloys for hermetic sealing. Kovar is also known as ASTM F-15, NILO K4, Pernifer 29182, Rodar1, and Dilvar P13.

Alloy 52

Alloy 52 is a controlled expansion alloy, consisting of 51% Nickel, balance Iron; used in a wide variety of electronic applications, especially for glass seals. Alloy 52 is also known as Pernifer 502, NILO 504, and Glass-Seal 521.

Alloy 48

Alloy 48 is a controlled expansion alloy, consisting of 48% Nickel, balance Iron; used in a variety of electronic application, especially for glass and ceramic seals. Alloy 48 is also known as Pernifer 482, NILO 484, and Glass-Seal 481.

Alloy 46

A controlled expansion alloy, consisting of 46% Nickel, balance Iron; used in a variety of  electronic applications, especially for glass and ceramic seals. Alloy 46 is also known as Pernifer 462, NILO 464, and Glass-Seal 461.

Alloy 42

Alloy 42 is a controlled expansion alloy, consisting of 42% Nickel, balance Iron; used in a wide variety of electronic application, lead frames, especially for glass and ceramic seals. Alloy 42 is also known as Pernifer 422, NILO 424, and Glass-Seal 421.

Alloy 42-6

Alloy 42-6 is a controlled expansion alloy, consisting of 42% Nickel, 6% Chromium, balance Iron; used in a wide variety of electronic applications, especially for glass seals. Alloy 42 is also known as Glass-Seal 42-61.

ED FAGAN Europe Ltd. supplies the highest quality special purpose alloys and metals for Aerospace/Aviation, Defence, Magnetic, Electronics, Telecommunications, Lighting, Optical, Ceramics, Heat Treating, Medical, and other high-technology industries.

1. Trademark Carpenter Technology Corp., Reading PA
2. Trademark ThyseenKrupp-VDM, Germany
3. Trademark Imphy Alloys, France
4. Trademark Special Metals Corporation, USA