40 x 20 x 5mm Strong Block Magnet N42H Ni Technical Specifications:
Item: NBN42H-40-20-5
Grade: N42H
Material: Neodymium (NdFeB)
Plating: Nickel
Shape: Block, Rectangular, Rectangle, Square
Dimension:
Length (L): 40 mm
Width (W): 20 mm
Height (H): 5 mm
Tolerance: ±0.05 mm
Magnetisation Direction: Axial / Radial
Residual Magnetic Flux Density (Br): 1280-1320 mT (12.8-13.2 kGs)
Energy Density (BH)max: 318-342 KJ/m³ (40-43 MGOe)
Coercivity Force (Hcb): ≥ 955 kA/m ( ≥ 12.0 kOe)
Intrinsic Coercivity Force (Hcj): ≥ 1353 kA/m ( ≥ 17 kOe)
Maximum Operation Temperature: 120 °C
Delivery Time: 14-35 days
Browse our online store for the highest quality magnetic products at the lowest prices available. Our product range includes neodymium (rare earth) magnets in standard sizes with strengths ranging from N38 to N52. We also supply Magnetic Tools and Accessories, Magnetic Health Products, Wind Turbine Magnets, Magnetic Toys and Magnetic Jewellery. If you find a cheaper advertised price we will beat it! Bulk discounts apply..
We carry a wide range of rectangular Neo magnets in various grades, not all of which are shown on this website. If you require something non-standard, it’s no problem. Just let us know what you are looking for by clicking on the “Special Request”icon at the top of the site, and we’ll work with you to determine the most economical way of providing you with what you need.
Magnets are found everywhere: In doors and drawers, in toys and tools, at friges and pinboards, in households, offices and workshops. Magnets are an invitation to children to make their own experiences, to become little explorers and discoverers. Magnets – the right ones! – are easy to handle, there is no need of complicate experimental setup, and magnetic effects are amazing.
Children have to be curious. And they shall detect the fascinating world of magnetism. But nevertheless: Magnets are no toys. Don’t leave your children alone. Especially neodymium magnets in most cases are too strong for a child’s hands. If swallowed magnets can cause danger of life! Please read our safety precautions. Children should not make their first experiences with neodymiums but with magnets of AlNiCo and ferrite and our special collection of science and educational magnets.
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