Silicon Carbide Size: F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 JIS#16 JIS#20 JIS#24 JIS#30 JIS#36 JIS#46 JIS#54 JIS#60 JIS#80 JIS#100 JIS#120 JIS#150 JIS#180 JIS#220 JIS#240 JIS#280 JIS#320 JIS#400 JIS#600 JIS#800 JIS#1000 JIS#1200 JIS#1500 JIS#2000 JIS#2500 JIS#3000 JIS#4000 JIS#6000 Chemical analysis(%): SiC:94.5-99% Fe2O3:0.20-0.70% F.C:0.20-0.50% Physical Properties: Hardness(mohs):9.5 Melting point:2250 Maximum service temperature:1900 Ture density(g/cm3):3.90g/cm3 Application: silicon carbide from F20 to F220 is suitable for processing hard metal alloys and non-metallic materials that are hard and brittle such as jewels, optical glass or ceramics. It's sharp cutting characteristics also make it useful for soft materials such as copper, brass, aluminium, or magnesium.