Neodymium Block Magnet - 10mm x 5mm x 4mm | N42
Product code: B-W5H4L10-N42

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Volume pricing available on requestNeodymium Block Magnet - 10mm x 5mm x 4mm | N42
Magnetic Product Description:
This neodymium magnetic block has a length of 10mm, width of 5mm and a height of 4mm. It has a magnetic flux reading of 6348 Gauss and a pull force of 1.97 kilos. It is identified by the AMF magnet part number B-W5H4L10-N42.
Uses for our rare earth block magnets:
These Neodymium block magnets are small and easy to handle however they possess a surprisingly powerful pull force for their small size. This block magnet is well suited to applications that require a strong and stable holding force. Unlike other forms of attachment, magnets will not lose their power over time and they are a somewhat overlooked solution for much common attachment and securing requirements. Magnets are fantastic as they can be both a permanent or a short term holding solution that does not require permanently damaging the substructure with glue or drilling.
Each rare earth block can be used alone or in multiples to achieve just the right amount of magnetic strength required. Also referred to as bar magnets and rectangular magnets, these neo blocks are part of a large range of Neodymium magnets available in varying shapes, sizes and grades.
Neodymium Block Magnet - 10mm x 5mm x 4mm | N42 (B-W5H4L10-N42)
Grade | |
---|---|
N42 | N/A |
Max Operating Temperature °C | |
<=80 | N/A |
Remanence | |
1.3-1.35 | N/A |
Coercivity | |
13-13.5>=836 | N/A |
Intrinsic Coercivity | |
>=10.5 | N/A |
Max Energy Product | |
>=955 | N/A |
Grade | N42 |
Max Operating Temperature °C | <=80 |
Remanence | 1.3-1.35 |
Coercivity | 13-13.5>=836 |
Intrinsic Coercivity | >=10.5 |
Max Energy Product | >=955 |

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.
Magnetic Product Description:
This neodymium magnetic block has a length of 10mm, width of 5mm and a height of 4mm. It has a magnetic flux reading of 6348 Gauss and a pull force of 1.97 kilos. It is identified by the AMF magnet part number B-W5H4L10-N42.
Uses for our rare earth block magnets:
These Neodymium block magnets are small and easy to handle however they possess a surprisingly powerful pull force for their small size. This block magnet is well suited to applications that require a strong and stable holding force. Unlike other forms of attachment, magnets will not lose their power over time and they are a somewhat overlooked solution for much common attachment and securing requirements. Magnets are fantastic as they can be both a permanent or a short term holding solution that does not require permanently damaging the substructure with glue or drilling.
Each rare earth block can be used alone or in multiples to achieve just the right amount of magnetic strength required. Also referred to as bar magnets and rectangular magnets, these neo blocks are part of a large range of Neodymium magnets available in varying shapes, sizes and grades.
Neodymium Block Magnet - 10mm x 5mm x 4mm | N42 (B-W5H4L10-N42)
Grade | |
---|---|
N42 | N/A |
Max Operating Temperature °C | |
<=80 | N/A |
Remanence | |
1.3-1.35 | N/A |
Coercivity | |
13-13.5>=836 | N/A |
Intrinsic Coercivity | |
>=10.5 | N/A |
Max Energy Product | |
>=955 | N/A |
Grade | N42 |
Max Operating Temperature °C | <=80 |
Remanence | 1.3-1.35 |
Coercivity | 13-13.5>=836 |
Intrinsic Coercivity | >=10.5 |
Max Energy Product | >=955 |

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.