Neodymium Disc Magnet - 15mm x 3mm | North Marked

Product code: 20021A

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Neodymium Disc Magnet - 15mm x 3mm | North Marked

Rated 5.0 out of 5
Based on 8 reviews
Product Code 20021A
Pull Force* 2.9kg
Weight 4 gm
Style North marked Rare Earth disc magnet
Gauss 2340
Grade N38
Coating Nickel (NiCuNi)
Direction of Magnetisation Axially magnetised
Dimensions Height:3mm, Diameter:15mm
*Measured against up to 10mm mild steel.
Neodymium Disc Magnet - 15mm x 3mm | North Marked

Magnetic Product Description:

This rare earth disc has a diameter of 15mm and a height of 3mm. It has a magnetic flux reading of 2340 Gauss and a pull force of 2.9kg. The north pole is marked by a dimple. It is identified by the AMF magnet part number 20021A.


Uses for our rare earth disc magnets:

Metal separation, picking up nails & screws, water conditioning, building generators, magnetic stirrers, metal detectors, tool knife holders, holding, stud finders, magnetic therapy, magic tricks, brochure closures.

Neodymium Disc Magnet - 15mm x 3mm | North Marked (20021A)

Grade
N38 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.23-1.3 N/A
Remanence Br(kGs)
12.3-13 N/A
Coercivity bHc(kA/m)
>=859 N/A
Coercivity bHc(Oe)
>=10.8 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
286-318 N/A
Max Energy Product(BH)max(MGOe)
36-40 N/A
Grade N38 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.23-1.3 N/A
Remanence Br(kGs) 12.3-13 N/A
Coercivity bHc(kA/m) >=859 N/A
Coercivity bHc(Oe) >=10.8 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 286-318 N/A
Max Energy Product(BH)max(MGOe) 36-40 N/A

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.

average rating 5.0 out of 5
Based on 8 reviews
  • 5 Stars
    8 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
8 Reviews
Reviewed by Steve
I recommend this product
Rated 5 out of 5
Review posted

Excellent quality, lightning fast delivery

Always a reliable vendor.

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Reviewed by Ocelot
I recommend this product
Rated 5 out of 5
Review posted

Good!

Arrived at lighting speed, properly packed. What's not to like!

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Reviewed by Hell & W.
I recommend this product
Rated 5 out of 5
Review posted

Perfect!

Super strong! Great quality and speedy delivery

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Reviewed by Markers
I recommend this product
Rated 5 out of 5
Review posted

Great magnets

As always, great magnets and delivery.

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Reviewed by Michele
I recommend this product
Rated 5 out of 5
Review posted

Lapel badges fixed!

I sought out some stronger magnets to work with lapel badges we were asked to wear for work. The magnet that came with the badge wasn't strong enough and the badge was quite easily knocked and dropped off a jacket lapel or blouse. The magnets I found at AMF Magnetics were a perfect size to fit the badges, and even though they were a small disc they were fantastically strong. Problem solved!

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Neodymium Disc Magnet - 15mm x 3mm | North Marked

Magnetic Product Description:

This rare earth disc has a diameter of 15mm and a height of 3mm. It has a magnetic flux reading of 2340 Gauss and a pull force of 2.9kg. The north pole is marked by a dimple. It is identified by the AMF magnet part number 20021A.


Uses for our rare earth disc magnets:

Metal separation, picking up nails & screws, water conditioning, building generators, magnetic stirrers, metal detectors, tool knife holders, holding, stud finders, magnetic therapy, magic tricks, brochure closures.

Neodymium Disc Magnet - 15mm x 3mm | North Marked (20021A)

Grade
N38 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.23-1.3 N/A
Remanence Br(kGs)
12.3-13 N/A
Coercivity bHc(kA/m)
>=859 N/A
Coercivity bHc(Oe)
>=10.8 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
286-318 N/A
Max Energy Product(BH)max(MGOe)
36-40 N/A
Grade N38 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.23-1.3 N/A
Remanence Br(kGs) 12.3-13 N/A
Coercivity bHc(kA/m) >=859 N/A
Coercivity bHc(Oe) >=10.8 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 286-318 N/A
Max Energy Product(BH)max(MGOe) 36-40 N/A

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.

average rating 5.0 out of 5
Based on 8 reviews
  • 5 Stars
    8 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
8 Reviews
Reviewed by Steve
I recommend this product
Rated 5 out of 5
Review posted

Excellent quality, lightning fast delivery

Always a reliable vendor.

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Was this helpful?
Reviewed by Ocelot
I recommend this product
Rated 5 out of 5
Review posted

Good!

Arrived at lighting speed, properly packed. What's not to like!

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Was this helpful?
Reviewed by Hell & W.
I recommend this product
Rated 5 out of 5
Review posted

Perfect!

Super strong! Great quality and speedy delivery

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Was this helpful?
Reviewed by Markers
I recommend this product
Rated 5 out of 5
Review posted

Great magnets

As always, great magnets and delivery.

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Was this helpful?
Reviewed by Michele
I recommend this product
Rated 5 out of 5
Review posted

Lapel badges fixed!

I sought out some stronger magnets to work with lapel badges we were asked to wear for work. The magnet that came with the badge wasn't strong enough and the badge was quite easily knocked and dropped off a jacket lapel or blouse. The magnets I found at AMF Magnetics were a perfect size to fit the badges, and even though they were a small disc they were fantastically strong. Problem solved!

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