blck sic F12-F220

blck sic F12-F220

/MT

blck sic F12-F220

Production process and characteristics
Black sic is brittle and sharp, and has high hardness, low expansion coefficient,good thermal conductivity and electrical conductivity. It takes petroleum coke and high quality silicon as raw materials, adds salt as additive, and is fused through the electric resistance furnace at high temperature. hexagonal crystalline of microscopic shape, 3300kg/mm³ of microhardness. Its hardness is higher than corundum but lower than diamond, cubic boron nitride and boron nitride among abrasives. Density is 3.2g/mm³, the natural bulk density of black silicon carbide abrasive is 1.2-1.6g /mm³, and the specific gravity is 3.20 – 3.25.

Black sic Application
1.cutting, lapping and grinding of refractory materials
2.special ceramics, and auto parts,
3.military aviation, deoxidizer for steel making,
4.solar silicon wafer, and semiconductor silicon wafer, and quartz silicon wafer;
5.making bonded abrasive tools and coated abrasive tools;
6.grinding and lapping of stones;
7.processing metal and non-metal materials with low tensile strength, such as grey cast iron,brass, aluminum, stone, leather and rubber etc.

blck sic F12-F220

Black sic main properties 

Product Name

Black sic grain

Material

 quarts sand and petroleum coke

color

Black

standard

 FEPA JIS

Grade

A

Sic

98.6%min

Fe2O3

0.20%max

F.C

0.15%max

Maximum service temperature

1900℃

Mohs Hardness

9.3

Specific Gravity

   3.90g/cm3

Melting Point

2250

Black sic Available Size

FEPA STANDARD

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

JIS STANDARD

#16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360 #400 #500 #600 #700 #800 #1000 #1200 #1500 #2000 #3000

 

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