This specification covers one type of samarium/cobalt permanent magnets. Primarily for components of electrical, electronic, and magnetic devices requiring an energy level of 15 MGOe (119 kT.A/m) for use at service temperatures up to 250C. Nominal composition of 33% samarium and 67% cobalt with an energy level of 15 MG0e (119kT.A/m) with 250C maximum service rating.