Permalloy B (PB) | Soft Magnetic Alloys

Iron Nickel Alloys

Soft Magnetic Alloys

Permalloy B (PB) | Soft Magnetic Alloys

Soft Magnetism
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Overview & Features

Permalloy B is a Nickel-Iron alloy containing about 45％ Nickel and called 45％ Permalloy or PB Permalloy, etc.
This material has better soft magnetic properties than electromagnetic steel, but is more expensive because it contains more Nickel. However, since it does not contain Chromium, which is a non-rusting component, its corrosion resistance is inferior to that of 18-8 stainless steel.

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Standard
Chemical Composition
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Standards

Standards are listed as equivalent or similar to our materials, so please use them as a reference.

JIS

PB (C2531)

Chemical Composition

[Composition] Fe-Ni45
JIS standard value of chemical composition is shown in the table below.

Related Products

Re-rolling (Processing Service)

With our rolling technology and facilities we have developed over many years as a rerolling company, we also offer contract rolling (rerolling) of materials provided by our customers, as well as rerolling of market materials.
Heat treatment and cutting (slitting) can also be added as needed, allowing for flexibility in adjusting not only thickness but also hardness and width.

Features of our rerolling service is as follows:

(1) Compatible with various materials
We can produce a wide range of nonferrous metals, including carbon steels and stainless steels, as well as copper and copper-based alloys, aluminums, and nickel alloys.
(2)Small lots (single sheet or narrow coils) to large coils (hundreds of kilograms/coil) are available.
(3) Flexibility to adjust hardness and width
It is possible to add heat treatment and cutting (slitting) to achieve the desired temper and dimensions.
(4) Flexibility to adjust thickness（e.g., thickness 0.127mm, etc., applicable to inch equivalent size）
(5) Ultra thin foil（e.g., thickness 0.030mm, etc.）
(6) High-precision thickness tolerance（depends on materials）
(7) Short lead time for specified specifications
In the fastest case, custom-made materials can be shipped in as little as a few weeks.
(8) Materials provided by the customer can be either free of charge or paid.

Please order in the following situations:

・Looking for special material with custom specifications
・To make effective use of long-term inventory
・To get initial prototype materials in very small lots

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