Silicon Carbide ProductsSilicon carbide raw materials

Silicon Carbide Raw Material

Silicon carbide raw material supplied at 98 % SiC minimum, in the graded grain and mesh sizes listed below. Black, with a Moh's hardness of 9.2 and a melting point of 2300 ℃.

Color: Black
Grain sizes: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 200-0mesh, 325mesh, #60, #80, #100, #120, #180, #220, #240

Product overview

Silicon carbide raw material is supplied at a minimum SiC content of 98 %, with silica, iron oxide, free carbon and magnetic material limited as the specification states.

The source document states a Moh’s hardness of 9.2, a melting point of 2300 ℃ and a working temperature of 1900 ℃, together with specific gravity, bulk density, elasticity modulus, coefficient of thermal expansion and thermal conductivity. The material is black.

Grain and mesh sizes run from 0–1 mm to 5–8 mm and from 200–0 mesh to #240; the source states that other sizes can be produced to order.

Technical data

Chemical content
Property	Unit	Specification
SiC	%	98 min
SiO₂	%	1 max
Fe₂O₃	%	0.4 max
F.C	%	0.4 max
Magnetic Material	%	0.02 max

The source's chemical table prints one further row, labelled "H2O3", at 0.5 % max. That label is not a chemical species and has not been reinterpreted, so the row is withheld until the supplier confirms what is meant.
"F.C" is the source's own abbreviation and is kept as printed.

Physical properties
Property	Unit	Specification
Moh's Hardness		9.2
Melting Point	℃	2300
Working Temperature	℃	1900
Specific Gravity	g/cm3	3.2-3.45
Bulk Density	g/cm3	1.2-1.6
Color		Black
Elasticity Modulus	×10⁶ psi	58-65
Coefficient of Thermal Expansion	×10⁻⁶/℃	3.9-4.5
Thermal Conductivity	W/m.K	71-130