Description
HS Magnet’s Hot-Selling Alnico 3 Educational Magnet (140 × 12 × 6 mm) is designed for hands-on science learning, physics demonstrations and STEM projects. Made from high-grade Alnico 3 alloy, each bar is precision-sintered and color-coded (red north, blue south) for instant polarity identification. The attractive gift-box packaging makes it ideal for educational kits, teacher gifts and hobbyist collections.
Key Features
Magnetic Properties
- Grade: Alnico 3
- Remanence (Br): 1.05 – 1.15 T
- Maximum energy product (BHₘₐₓ): 5.0 – 5.5 MGOe
- Intrinsic coercivity (Hcb): ≈ 30 kA/m
- Temperature coefficient of Br: +0.02 %/°C
- Maximum operating temperature: 450 °C
Dimensions & Finish
- Size: 140.0 × 12.0 × 6.0 mm (± 0.10 mm)
- One end painted red (north), the other blue (south)
- Smooth, burr-free edges for safe handling
- Durable epoxy paint resists chipping and corrosion
Packaging & Quality Assurance
- Individually packed in a sturdy gift box with foam insert
- Anti-corrosion paper wraps each magnet for extra protection
- 100 % magnetic field inspection and batch traceability
- Custom branding and box design available on request
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