2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
United States
E-mail: sales@albmagnets.com
- STIR40 Neodymium Stir Bar, 0.315 inch dia. x 1.575 inch long (8mm dia. x 40mm long)
- BX842 Neodymium Magnets, 1 1/2 inch x 1/4 inch x 1/8 inch thick
- SB664-OUT Neodymium Magnets, 3/8 inch length x 3/8 inch width x 1/4 inch thick, with step OUT
- R822 Neodymium Magnets, 1/2 inch od x 1/8 inch id x 1/8 inch thick
- D9C Neodymium Magnets, 9/16 inch dia. x 3/4 inch thick
- POT01 Series Mounting Magnets and Pot Magnets
- B668 Neodymium Block Magnets
- D21 Neodymium Magnets, 1/8 inch dia. x 1/16 inch thick
- BX8X87 Neodymium Magnets, 1 1/2 inch x 1 1/2 inch x 7/16 inch thick
- D4X0DIA Neodymium Magnets, 1/4 inch dia. x 1 inch thick
B20x3.5x3.4mm Neodymium Magnet, 20 x 3.5 x 3.4mm Block Magnet
| Item No.: | B20x3.5x3.4mm |
|---|---|
| Material: | NdFeB, Grade N42 |
| Shape: | Block |
| Dimension: | 20x3.5x3.4mm |
| Tolerances: | ±0.1mm x ±0.1mm x ±0.1mm |
| Weight: | 0.238g |
| Grade: | N42 |
| Coating: | Ni-Cu-Ni (Nickel) |
| Pull Force(lbs): | 4.46 lbs (2.03kg) |
| Surface Field(Gauss): | 4716 |
| Magnetization direction: | Through Thickness |
| Max Operating Temp: | 80°C |
| Product Drawing: |  ·  |
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B20x5x3mm Neodymium Magnet, 20 x 5 x 3mm Block MagnetOther Grade B20x3.5x3.4mm Neodymium Magnets (20x3.5x3.4mm):
| Grade | Item No. | Product Name | Pull Force | Inquiry |
|---|---|---|---|---|
| N35 | ALB-B20x3.5x3.4mm-N35 | B20x3.5x3.4mm-N35 Neodymium Magnets | 3.74 lbs (1.70kg) | Inquiry |
| N38 | ALB-B20x3.5x3.4mm-N38 | B20x3.5x3.4mm-N38 Neodymium Magnets | 3.74 lbs (1.70kg) | Inquiry |
| N40 | ALB-B20x3.5x3.4mm-N40 | B20x3.5x3.4mm-N40 Neodymium Magnets | 4.06 lbs (1.85kg) | Inquiry |
| N42 | ALB-B20x3.5x3.4mm | B20x3.5x3.4mm Neodymium Magnets | 4.46 lbs (2.03kg) | Inquiry |
| N45 | ALB-B20x3.5x3.4mm-N45 | B20x3.5x3.4mm-N45 Neodymium Magnets | 4.73 lbs (2.15kg) | Inquiry |
| N48 | ALB-B20x3.5x3.4mm-N48 | B20x3.5x3.4mm-N48 Neodymium Magnets | 5.01 lbs (2.28kg) | Inquiry |
| N50 | ALB-B20x3.5x3.4mm-N50 | B20x3.5x3.4mm-N50 Neodymium Magnets | 5.16 lbs (2.34kg) | Inquiry |
| N52 | ALB-B20x3.5x3.4mm-N52 | B20x3.5x3.4mm-N52 Neodymium Magnets | 5.30 lbs (2.41kg) | Inquiry |
| N42SH | ALB-B20x3.5x3.4mmSH | B20x3.5x3.4mmSH Neodymium Magnets | 4.46 lbs (2.03kg) | Inquiry |
High Temperature B20x3.5x3.4mm Neodymium Magnets (20x3.5x3.4mm) 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.
B20x3.5x3.4mm Neodymium Magnets (20x3.5x3.4mm) 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.