... 3.9 4.Hardness(mohs):9.15 5 Color:black Black Silicon Carbide:1.Sic 98% F.C. 0.35% 2. ... ,rubber,etc.It is also broadly used as refractory material and metallurgical additive.Abrasives gradeGrit size: 16 ... 800#,1000#,1200#,1500# 2000#,2500#,3000#,4000#Refractory grade:1-0mm,3-1mm,5-3mm,5- ... 0021180-220970.301.20.0018micropowder240-4000960.351.35—Refractory gradeGroup Size0-1mm1-3mm3-5mm5-8mm970.351.35 ...