25 years black silicon carbide SiC manufacturer

Black silicon carbide SiC is produced by smelting quartz sand, petroleum coke (or coal coke), wood chips, and other raw materials in a resistance furnace. It appears as a black opaque body with hexagonal crystals and a Mohs hardness of 9.15. Second only to diamond and boron carbide, it possesses brittle and sharp properties with a certain degree of conductivity.

Applications for black silicon carbide:

Abrasives: Primarily used in the production of grinding wheels, sandpaper, oilstones, grinding heads, polishing pastes, and for surface grinding and polishing of monocrystalline silicon, polycrystalline silicon, and various devices in photovoltaic products.
Advanced refractories: It can serve as a deoxidizer in metallurgy and a high-temperature resistant material for manufacturing high-temperature furnace components and support parts.
Functional ceramics: Not only can it reduce kiln capacity, but it also improves kiln product quality and shortens cycles. It is ideal for indirect material production of ceramic glaze firing and sintering, high-temperature non-oxide ceramics, and reaction sintered ceramics.
Non-ferrous metals: Applied in the steel industry, metallurgical ore dressing industry, and more.

Typical Physical Properties:

Mohs Hardness	9.15
Melting Point	2250℃
Maximum Use Temperature	1900℃
True Density	3.2-3.4g/cm3
Knoop Hardness	2840-3320kg/mm2

Grit Size & Chemical Analysis:

Grits Size	F 8# 10# 12# 14# 16# 20# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#mesh
Chemical Composition (%)	SIC	≥98.5
	F.C	≤0.2
	Fe2O3	≤0.2
	H2O3	≤1

Micropowder Size & Chemical Analysis:

Micropowder Size	W Standard	W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5
	FEPA Standard	F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000#
	JIS Standard	JIS240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000#
Chemical Composition (%)	SIC	≥97
	F.C	≤0.3
	Fe2O3	≤0.3
	H2O3	≤1