... content MIN 0.0180% 5. Hardness(mohs) 9 Green silicon carbideSIC 99%.......F.C 0.35%....Fe2o3 0.6%..... Magnetic material content ... raw materials.It’s crystallization have higher purity and hardness.Green silicon carbide is suitable for processing hard alloy,metallic and ... is also a kind of ceramics material.Abrasives gradeGrit size: 16#,20#,24#30#,36#,46#,54#,60#,80#,100#,120 ...