SILICON CARBIDE TECHNICAL DATA
Panadyne offers both Macro and Micro grit sizing. Our Silicon Carbide is offered in standard FEPA sizes, custom particle sizes, custom densities, and custom chemistries.
Typical Silicon Carbide (SiC) Properties
SiC is an artificial (man-made) mineral known for its very high hardness and abrasion resistance. Common applications include pump seals, valve components, and wear-intensive applications such as rollers and paper industry retainers.
|
Properties
|
Units
|
Test
|
Value
|
|---|---|---|---|
|
Physical
|
|||
|
Chemical Formula
|
–
|
–
|
a-SiC
|
|
Density, r
|
g/cm3
|
ASTM C20
|
3.21
|
|
Color
|
–
|
–
|
dark gray
|
|
Crystal Structure
|
–
|
–
|
hexagonal
|
|
Water Absorption
|
% @R.T.
|
ASTM C373
|
0.0
|
|
Hardness
|
Moh’s
|
–
|
9 – 10
|
|
Hardness
|
knoop (kg/mm2)
|
Knoop 100g
|
2800
|
|
Mechanical
|
|||
|
Compressive Strength
|
MPa @ R.T.
|
ASTM C773
|
1725 – 2500
|
|
Tensile Strength
|
MPa @ R.T.
|
ACMA Test #4
|
310
|
|
Modulus of Elasticity
(Young’s Mod.) |
GPa
|
ASTM C848
|
476
|
|
Flexural Strength (MOR)
|
MPa @ R.T.
|
ASTM F417
|
324
|
|
Poisson’s Ratio, u
|
|
ASTM C818
|
0.19
|
|
Fracture Toughness, KIc
|
MPa x m1/2
|
Notched Beam Test
|
4.0
|
|
Thermal
|
|||
|
Max. Use Temperature
(* denotes inert atm.) |
ºC
|
No load cond.
|
1400
|
|
Thermal Shock Resistance
|
DT (ºC)
|
Quenching
|
350 – 500
|
|
Thermal Conductivity
|
W/m-K @ R.T.
|
ASTM C408
|
41
|
|
Coefficient of Linear Thermal Expansion, al
|
mm/m-ºC (~25ºC through ±1000ºC)
|
ASTM C372
|
5.12
|
|
Specific Heat, cp
|
cal/g-ºC @ R.T.
|
ASTM C351
|
0.15
|
|
Electrical
|
|||
|
Dielectric Constant
|
1MHz @ R.T.
|
ASTM D150
|
10.2
|
|
Dielectric Strength
|
kV/mm
|
ASTM D116
|
–
|
|
Electrical Resistivity
|
Wcm @ R.T.
|
ASTM D1829
|
108
|