Neodymium Disc - 20mm x 3mm | Gold Coating

Product code: 20017

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Neodymium Disc - 20mm x 3mm | Gold Coating

Rated 5.0 out of 5
Based on 1 review
Product Code 20017
Pull Force* 2.9 kg
Weight 7 gm
Style Rare Earth Disc magnet Gold
Gauss 1810
Grade N38
Coating Gold
Direction of Magnetisation Axially magnetised
Dimensions Height:3mm, Diameter:20mm
*Measured against up to 10mm mild steel.
Neodymium Disc - 20mm x 3mm | Gold Coating

Magnetic Product Description:

This rare earth disc has a diameter of 20mm and a height of 3mm. It has a magnetic flux reading of 1810 Gauss and a pull force of 2.9kg. It is identified by the AMF magnet part number 20017.


Uses for our rare earth disc magnets:

This 20mm x 3mm Neodymium Rare Earth magnet has a Gold plating, providing a range of benefits unique to the properties of this coating. Gold is an element that is corrosion-resistant and as such it can be suitable for use in humid or high salt environments. It is also a good thermal and electrical conductor which makes it particularly suitable for a variety of industrial applications. Medical and therapeutic product manufacturers also use Gold plated magnets as they are relatively hypoallergenic compared to the more common Nickel plating. Gold plated magnets are also popular for applications where aesthetics are important. Craftspeople, hobbyists and artists use Gold plated magnets as they have a more desirable finish and add a touch of luxury and elegance to a finished object.

Neodymium Disc - 20mm x 3mm | Gold Coating (20017)

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 1 review
  • 5 Stars
    1 Review
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100% of reviewers would recommend this product to a friend
1 Review
Reviewed by john
I recommend this product
Rated 5 out of 5
Review posted

gold plated

great little product. i use them for pain therapy and they work brilliantly. highly recommended.

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Neodymium Disc - 20mm x 3mm | Gold Coating

Magnetic Product Description:

This rare earth disc has a diameter of 20mm and a height of 3mm. It has a magnetic flux reading of 1810 Gauss and a pull force of 2.9kg. It is identified by the AMF magnet part number 20017.


Uses for our rare earth disc magnets:

This 20mm x 3mm Neodymium Rare Earth magnet has a Gold plating, providing a range of benefits unique to the properties of this coating. Gold is an element that is corrosion-resistant and as such it can be suitable for use in humid or high salt environments. It is also a good thermal and electrical conductor which makes it particularly suitable for a variety of industrial applications. Medical and therapeutic product manufacturers also use Gold plated magnets as they are relatively hypoallergenic compared to the more common Nickel plating. Gold plated magnets are also popular for applications where aesthetics are important. Craftspeople, hobbyists and artists use Gold plated magnets as they have a more desirable finish and add a touch of luxury and elegance to a finished object.

Neodymium Disc - 20mm x 3mm | Gold Coating (20017)

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 1 review
  • 5 Stars
    1 Review
  • 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
1 Review
Reviewed by john
I recommend this product
Rated 5 out of 5
Review posted

gold plated

great little product. i use them for pain therapy and they work brilliantly. highly recommended.

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