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Neodymium Disc Magnet - 3.175mm x 1.58mm | N52 | Black Nickel Coating

Product code: D-D3.175H1.58-N52Bni

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Neodymium Disc Magnet - 3.175mm x 1.58mm | N52 | Black Nickel Coating

Product Code D-D3.175H1.58-N52Bni
Pull Force* 254 gm
Weight 2 gm
Style Neodymium Disc
Grade N52
Coating Nickel (Ni)
Direction of Magnetisation Axially
Dimensions Height:1.58mm, Diameter:3.175mm
*Measured against up to 10mm mild steel.
Neodymium Disc Magnet - 3.175mm x 1.58mm | N52 | Black Nickel Coating

Magnetic Product Description:

This neodymium magnetic disc has a diameter of 3.175mm and a height of 1.58mm. It has a pull force of 254 grams. It is identified by the AMF magnet part number D-D3.175H1.58-N52Bni.

Uses for our rare earth disc magnets:

This Rare Earth Disc Magnet is among the smallest in our range, at just ⅛ by 1/16 of an inch it certainly is a mini magnet. The powerful magnetic material of Neodymium has been used in the production of this magnet, further enhanced by the N52 grade which is the highest grade magnetic material commercially available. The Nickel plating on these little neodymium discs gives them chrome or silver appearance and they are a fantastic choice as a craft magnet. This particular neo disc has imperial dimensions making it ideal for particular applications where these dimensions are desirable.

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NB: Ranges are indicative for product category, please check individual products for specic values within that range.

The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.

Magnets are readily available in Blocks, Discs, Cylinders & Rings. AMF Magnetics specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.

Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.