Description
HS Magnet’s YG28 samarium-cobalt disc magnet (Ø 82 mm) delivers exceptional magnetic strength, temperature stability and dimensional precision for the most demanding industrial, aerospace and instrumentation applications. Manufactured from premium Sm₂Co₁₇ alloy, this disc magnet maintains performance up to 350 °C and offers superior corrosion resistance when coated.
Key Features
- Material & Magnetic Properties
- Grade: YG28 (Sm₂Co₁₇)
- Maximum energy product (BHₘₐₓ): 28 MGOe (≈ 224 kJ/m³)
- Remanence (Br): 1.00 – 1.05 T
- Intrinsic coercivity (Hₖⱼ): ≥ 860 kA/m
- Temperature coefficient of Br: – 0.03 %/°C
- Maximum operating temperature: 350 °C
- Dimensions & Tolerance
- Diameter (D): 82.00 mm
- Thickness (T): customizable (standard 5.00 mm or per customer request)
- Dimensional tolerance: ± 0.02 mm
- Surface & Coatings
- Natural passivated SmCo surface
- Optional coatings: nickel, zinc or epoxy for enhanced corrosion protection
- Lapped faces and chamfered edges available on request
- Packaging & Handling
- Individually wrapped in corrosion-inhibiting paper
- Foam-padded or poly-bagged to prevent chipping
- Supplied in bulk trays, custom blister packs or wooden boxes
- Batch number and material certificate included
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