AlNiCo 6 Large Ring Magnets OD 48 * ID 43.5 * 15mm

Description

HS Magnet’s Alnico 6 large ring magnet (OD 48 mm × ID 43.5 mm × 15 mm) combines high flux density, excellent thermal stability and tight dimensional control—ideal for demanding electromagnetic assemblies. CNC-ground on all faces, this precision-machined ring is built for long-term reliability in industrial, scientific and audio applications.

Key Features

Magnetic Properties

• Grade: Alnico 6
• Remanence (Br): ≈ 1.20 – 1.30 T
• Maximum energy product (BHₘₐₓ): ≈ 5.5 – 6.0 MGOe
• Coercivity (Hcb): ≈ 42 – 48 kA/m
• Temperature coefficient of Br: + 0.02 %/°C
• Maximum operating temperature: 550 °C

Dimensions & Tolerances

• Outer diameter (OD): 48.00 mm
• Inner diameter (ID): 43.50 mm
• Thickness: 15.00 mm
• Standard tolerance: ± 0.10 mm (± 0.05 mm ultra-tight optional)
• CNC-ground faces ensure flatness and concentricity

Surface Finish & Coatings

• Natural sintered grey finish
• Optional corrosion-resistant plating: nickel, tin or epoxy

Packaging & Quality Assurance

• Individually wrapped in anti-corrosion paper
• Packed in foam-lined trays or polybags to prevent chipping
• Full batch traceability with material certificates and magnetic test reports
• Custom packaging options: blister packs, wooden crates, bulk cartons