When a Neodymium magnet gets too hot, it fails. When a Samarium magnet gets too hot, it just keeps working. Samarium is the heavy-duty hero of the permanent magnet world, offering incredible magnetic strength that refuses to degrade even in the searing heat of a jet engine or a high-speed motorsport motor.
As a trusted UK manufacturer of advanced rare earth alloys, Less Common Metals (LCM) is a recognised expert in the highly specialised permanent magnet sector. Located in Ellesmere Port, UK, we supply the premium-grade Samarium alloys that the defence, aerospace and motorsport industries rely on when failure is not an option.
| Composition | Samarium Metal 99.9% |
| Common metallic impurities | Trace metals basis |
| Physical Description | Silver-grey dendritic lump up to 60mm edge size |
| Analytics | ICP-OES |
| Certificate of analysis | Available upon request |
| Packaging | Packed in sealed polythene bags and supplied in securely sealed metal drums, resistant to the impregnation of water |
Samarium is a moderately hard, silvery-white rare earth metal that slowly oxidises in air. While it has several niche applications in nuclear reactors and chemical catalysis, its defining industrial purpose is its role in creating some of the most powerful and temperature-resilient permanent magnets on Earth.
Samarium’s industrial footprint is highly focused and incredibly vital:
Samarium-Cobalt magnets are generally more expensive and brittle than Neodymium magnets. However, in the aerospace and defence sectors, cost is secondary to reliability. If a magnet demagnetises mid-flight due to engine heat, the entire system fails. But with Samarium, it provides the ultimate engineering insurance policy. Therefore, making it a highly strategic, mission-critical material for Western defence and advanced manufacturing supply chains.