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US Address:

Niagara Falls, NY 14305

Canadian/International ship from Waterloo; US orders from Buffalo, NY.

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25x5x2.5mm NdFeb Slab Magnet

This 25x5x2.5mm neodymium block magnet been used for building magnetic tool boards & other metal objects. boards.

Click on Tabs below for additional information.



Related Products


SKU: 44257-2.5
Block magnet, 25x5x2.5mm, Nd/N42, Full Sintered/Pressed

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Titanium tweezers can be used to handle small block magnets & position them easily. The Mark I Magnaprobe is ultra sensitive & can be used to check stray magnetic fields. The Mark II Magnaprobe is a fast & convenient way to confirm magnet are positioned with their poles pointing correctly.



You can open or download a copy of the Hysteresis Graph or ROHS certification that applies to all our N42 grade magnets.

Field Strength (Gauss) & Pull Force in Pounds & Kilograms at 5 Distances Above Magnet
SKU: 44257-2.5      Size:  25 x 5 x 2.5mm
Distance (mm): 0 0.1 1 10 100
Gauss 3380.8 3294.9 2472.1 216.0 0.6
Lb 4.46 4.24 2.38 0.02 0.00
Kg 2.03 1.93 1.08 0.01 0.00
  • N42 grade: ~13,000 gauss (1.3T)
  • nickel-copper-nickel coated
  • size tolerance for dimensions <10mm: +/- 0.05mm
  • size tolerance for dimensions >10mm: +/- 0.1mm
  • size tolerance for dimensions >50mm: +/- 0.2mm
  • magnet strength variance piece to piece: <8%
  • 80C maximum operating temperature
  • axis of magnetization is perpendicular to page

Go to rare earth magnets to also see available cube & square shapes.

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