Storch Magnetics has one of the largest inventories of magnetic materials in the country used for the manufacturing of 1″ dia. Magnetic Tubes ranging in lengths from 4″ to 60″. In addition to our Standard Rare Earth Neodymium Grade 50 MGOe, Storch also Stocks a High Temp Rare Earth, Permanent Ceramic 8, Samarium Cobalt, and Alnico that can withstand temperatures of up to 800 degrees F.