... High-carbon steel 1.silicon carbide fiber disc, has good flexibility, high Intensity and high Wear-resisting. ... no harder than Boron carbide and Diamond, friable, its girt is sharp, and Thermal conductivity3. Suitable ... silicon carbideCblack Harder than corundum, crisper, less flexibility.Suitable for process weak Tensile strength metallic and Nonmetallic material, i.e. single alundum silicon carbide ...