2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
United States
E-mail: sales@albmagnets.com
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B642 Neodymium Magnets, 3/8 inch x 1/4 inch x 1/8 inch thick
| Item No.: | ALB-B642 |
|---|---|
| Material: | NdFeB, Grade N42 |
| Shape: | Block |
| Dimension: | 3/8" x 1/4" x 1/8" thick (9.53mm x 6.35mm x 3.18mm thick) |
| Tolerances: | ±0.004" x ±0.004" x ±0.004" (±0.1mm x ±0.1mm x ±0.1mm) |
| Weight: | 0.051 oz. (1.44 g) |
| Grade: | N42 |
| Coating: | Ni-Cu-Ni (Nickel) |
| Pull Force(lbs): | 3.91 lbs |
| Surface Field(Gauss): | 3957 Gauss |
| Magnetization direction: | Through Thickness |
| Max Operating Temp: | 80°C |
| Product Drawing: |  ·  |
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B664 Neodymium Magnets, 3/8 inch x 3/8 inch x 1/4 inch thickOther Grade B642 Neodymium Magnets (3/8" x 1/4" x 1/8" thick):
| Grade | Item No. | Product Name | Pull Force | Inquiry |
|---|---|---|---|---|
| N35 | ALB-B642-N35 | B642-N35 Neodymium Magnets | 3.25 lbs | Inquiry |
| N38 | ALB-B642-N38 | B642-N38 Neodymium Magnets | 3.25 lbs | Inquiry |
| N40 | ALB-B642-N40 | B642-N40 Neodymium Magnets | 3.52 lbs | Inquiry |
| N42 | ALB-B642 | B642 Neodymium Magnets | 3.87 lbs | Inquiry |
| N45 | ALB-B642-N45 | B642-N45 Neodymium Magnets | 4.17 lbs | Inquiry |
| N48 | ALB-B642-N48 | B642-N48 Neodymium Magnets | 4.48 lbs | Inquiry |
| N50 | ALB-B642-N50 | B642-N50 Neodymium Magnets | 4.67 lbs | Inquiry |
| N52 | ALB-B642-N52 | B642-N52 Neodymium Magnets | 4.86 lbs | Inquiry |
| N42SH | ALB-B642SH | B642SH Neodymium Magnets | 3.87 lbs | Inquiry |
High Temperature B642 Neodymium Magnets (3/8" x 1/4" x 1/8" thick) are also available:
| Neodymium Material Type | Maximum Operating Temp | Curie Temp |
|---|---|---|
| N (N35-N52) | 176°F (80°C) | 590°F (310°C) |
| NM (N35M-N52M) | 212°F (100°C) | 644°F (340°C) |
| NH (N33H-N52H) | 248°F (120°C) | 644°F (340°C) |
| NSH (N30SH-N50SH) | 302°F (150°C) | 644°F (340°C) |
| NUH (N28UH-N48UH) | 356°F (180°C) | 662°F (350°C) |
| NEH (N28EH-N48EH) | 392°F (200°C) | 662°F (350°C) |
| NAH (N28AH-N35AH) | 428°F (220°C) | 662°F (350°C) |
The Thermal Characteristics listed above are values commonly associated with each magnet's grade or material. Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit.
B642 Neodymium Magnets (3/8" x 1/4" x 1/8" thick) with other Coating are also available:
| Coating Type | Overall Thickness | Salt Spray Test | Pressure Cooker Test |
|---|---|---|---|
| Ni-Cu-Ni (Nickel) | 15-21 μm | 24 hours | 48 hours |
| NiCu + Black Nickel | 15-21 μm | 24 hours | 48 hours |
| NiCuNi + Epoxy | 20-28 μm | 48 hours | 72 hours |
| NiCuNi + Gold | 16-23 μm | 36 hours | 72 hours |
| NiCuNi + Silver | 16-23 μm | 24 hours | 48 hours |
| Zinc | 7-15 μm | 12 hours | 24 hours |
Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver Coating layers are 1-2 μm thick. Test results shown to allow comparison between Coating options. Performance in your application under your specific test conditions may vary. Salt Spray testing conducted with a 5% NaCl solution, at 35°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.
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ALB Materials Inc
2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
Website: www.albmagnets.com
E-mail: sales@albmagnets.com
How to choose and buy a strong neodymium magnet? ALBMagnets is a professional company for strong magnet design and manufacturing,
providing you with reliable N35, N38, N42, N52, N42SH and other grade super neodymium magnets and SmCo rare earth magnets.