SM-047897 Premium 58×3×11.7mm AlNiCo Flat Bar Magnets – High-Temp Stable & Corrosion Resistant
Features
Superior AlNiCo Thermal Stability: Engineered from high-grade sintered AlNiCo alloy, these magnets maintain stable magnetic performance across an extremely wide temperature range, with a Curie temperature exceeding 850°C and minimal magnetic loss at continuous operating temperatures up to 500°C. This makes them ideal for high-temperature environments where neodymium or ferrite magnets would suffer irreversible demagnetization.
Natural Corrosion & Environmental Resistance: AlNiCo’s metallic composition offers inherent resistance to oxidation, rust, and environmental wear, eliminating the need for electroplating or protective coatings. This uncoated design preserves the magnet’s structural integrity and magnetic properties over decades of use, reducing maintenance costs and ensuring long-term reliability in humid, industrial, or outdoor conditions.
Precision 58×3×11.7mm Flat Rectangular Profile: The compact, flat bar geometry is precision-machined to strict dimensional tolerances, with a balanced 58mm length, 3mm thickness, and 11.7mm width. This profile is optimized for linear magnetic circuits, sensor assemblies, and narrow-space installations, providing efficient magnetic field distribution and seamless integration into custom fixtures, jigs, and industrial equipment.
Consistent Magnetic Performance: Sintered AlNiCo offers a very low temperature coefficient of remanence, meaning its magnetic flux density changes minimally with temperature fluctuations. This stability is critical for precision applications like speed sensors, flow meters, and aerospace navigation systems, where consistent magnetic output is required for accurate, repeatable measurements.
High Mechanical Durability & Machinability: AlNiCo’s dense, sintered structure provides excellent mechanical strength and low brittleness compared to ceramic or rare-earth magnets, making these flat bar magnets resistant to chipping, cracking, and damage during installation or high-vibration operation. Their machinable composition also allows for custom modifications to the profile if required for specialized applications.
Versatile Industrial Application Compatibility: These flat rectangular AlNiCo magnets are widely used in high-temperature sensors, aerospace instrumentation, industrial automation equipment, magnetic separators, motor stators, and linear actuators. Their combination of thermal stability, corrosion resistance, and precise form factor makes them suitable for both general industrial and specialized precision applications.
RoHS-Compliant & Environmentally Sustainable: Constructed from lead-free AlNiCo alloy, the magnets meet international RoHS environmental standards, free of harmful substances. Their long operational life and corrosion resistance reduce replacement frequency, minimizing environmental impact compared to lower-durability magnet alternatives.
Product Details
Introduction
These precision-engineered flat rectangular AlNiCo bar magnets, sized at 58×3×11.7mm, are premium aluminum-nickel-cobalt permanent magnets designed for applications requiring exceptional thermal stability, consistent magnetic performance, and long-term reliability. Crafted from high-grade sintered AlNiCo alloy, they deliver strong magnetic flux density, excellent coercivity, and minimal magnetic drift, even under extreme temperature fluctuations and prolonged operational cycles. Their flat, elongated rectangular profile is optimized for linear magnetic circuits, sensor assemblies, and industrial fixtures, offering a high surface-area-to-volume ratio for efficient magnetic field distribution. Unlike rare-earth magnets that rely on protective coatings, AlNiCo’s inherent metallic composition provides natural corrosion resistance, eliminating the risk of coating degradation in humid or mildly corrosive environments. Each magnet undergoes rigorous quality control, including dimensional verification and magnetic performance testing, to ensure tight tolerances, uniform properties, and reliable fit in mass-produced systems, making them ideal for high-temperature sensors, aerospace components, and industrial automation equipment.