Product Description Smco Other Physical Properties Smco5 Temperature Coefficent Of Br (%/?C): -0.05 Temperature Coefficent Of IHc(%/?C): -0.3 Curie Temperature (?C): 700-750 Density (g/cm?: 8.2-8.4 Vickers Hardness (HV): 450-500 Working Temperature (?C): 250 Sm2co17 Temperature Coefficent Of Br (%/?C): -0.03 Temperature Coefficent Of IHc(%/?C): -0.2 Curie Temperature (?C): 800-850 Density (g/cm?: 8.3-8.5 Vickers Hardness (HV): 500-600 Working Temperature (?C): 350