Yes, we are OPEN during the Coronavirus crisis. Click here for details.
We are now required to collect sales tax in several states. If your business is tax exempt, learn more here.
All orders placed & paid online by 1PM ET (M-F) will be shipped the same day!
  • Description
  • Technical
  • Downloads
  • Video
Great general purpose discs for high temperature applications. They are excellent for arts and crafts applications that require a strong, thin disc. Just 1/16" thick, but still a sturdy disc. The D81 is deceptively strong for its size.

The D81SH discs are made with grade N42SH (SH = Super High Temperature) material. The SH material means that the magnets can be heated to 302° F without any loss of magnetic strength, unlike standard neodymium magnets that begin to lose strength at 175° F.

This size is also available in grade N42 as part number D81 and in grade N52 as part number D81-N52.

Case1 Pull Force, Case 1 vs. distance: Magnet to a Steel Plate.
Case2 Pull Force, Case 2 vs. distance: Between 2 Steel Plates.
Case3 Pull Force, Case 3 vs. distance: Magnet to Magnet.
Case4 Pull Force, Case 4 vs. distance: Magnet to Magnet Repulsion.
Magnetic Field Click here for a depiction of the magnetic field.
BH Curves View B-H curves for this magnet.

SpecSheet Click here to download a PDF Specification Sheet.
Drawing Click here to download a PDF drawing of this product.
Cert Click here to download a Certificate of Compliance for this product.
RoHS Click here to download a RoHS Statement of Compliance for this product.
MSDS Click here to download a Material Safety Data Sheet (MSDS) for this product.
CMRT Click here to download a Conflict Minerals Reporting Template (CMRT).
Origin Click here to download a Certificate of Origin for this product.
REACH Click here for a REACH compliance statement.
STEP Click here to download a .STEP file (3D model).
IGS Click here to download an .IGS file (3D model).

   Download the free Adobe Acrobat Reader

 Price: $0.90
Price ea.Qty
$0.90 1-24
$0.88 25-49
$0.86 50-99
$0.84 100-249
$0.82 250-499
$0.80 500-999
$0.78 1000-2499
$0.76 2500-4999
$0.74 5000-9999
$0.72 10000-24999
For pricing at higher order quantities,
please email us!

10% Off
1" x 3/8" x 1/8"
Block Magnets

10% Off
1/2" x 1/2" x 1/4"
Stepped Magnets

Order by phone:
or 215-766-8055

 Order online for
 fastest shipping!

No Minimum Order!

K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets