Description
Material: Neodymium (NdFeB)
Magnetization: Radially magnetized (magnetic field runs through the ring's diameter)
Dimensions:
- Outer diameter: Ø 5mm (0.20")
- Inner diameter: Ø 3mm (0.12")
- Thickness: 4mm (0.16")
Coating: Nickel Plated
| name | Product Specifications | SI | CGS |
|---|---|---|---|
| shape | |||
| Diameter | D | 5 mm | 0.5 cm |
| Inner diameter | ID | 3 mm | 0.3 cm |
| High | H | 4 mm | 0.4 cm |
| Magnetization Direction | M | Radial | |
| surface treatment | NiCuNi | 12 μm | - |
| Magnetic properties | |||
| Surface magnetic flux density | B | 276.3 mT | 2763 Gauss |
| Suction force/ adsorption force |
F | 0.159 kgf | 159 gf |
| Permeance Coefficient | PC | 1.36 Pc | - |
| Maximum operating temperature | Tw | 90 ℃ | 194 °F |
| Material property | |||
| Material symbol | neodymium | 35 | |
| Residual magnetic flux density | Br | 1170-1220 mT | 11.7-12.2 kg |
| Coercive force | Hcb | ≧868 kA/m | ≧10.9 kOe |
| Intrinsic coercivity | Hcj | ≧955 kA/m | ≧12 kOe |
| Maximum Energy Product | BH | 263-287 kj/m3 | 33-36 MGOe |
| Temperature coefficient | Br | -0.12 %/℃ | 31.78 %/°F |
| Hcj | -0.55 %/℃ | 31.01 %/°F | |
| Heatproof temperature | Tw | ≦80 ℃ | <= 176 °F |
| Curie temperature | Tc | 310 ℃ | 590 °F |
| density | ρ | 7.5 kg/m3 | - |
| weight | Net | 0.00038 kg | 0.38 g |
| remarks | |||
| REACH RoHS Directive | |||
Warning
This product is not a toy and is unsuitable for children. Designed for scientific and industrial use, it contains strong Neodymium magnets that can be harmful if swallowed. These magnets are brittle and may chip or break upon impact. Handle with care. Please review the Warnings page before ordering.
