Products
Protecting Tubes - Small Diameter Silicon Carbide
SA SiC is produced by pressureless sintering sub micron silicon carbide powder. The sintering process results in a self-bonded, fine grain SiC product which is highly resistant to corrosion, erosion, high temperature and thermal shock.
Material | Tube
Size I.D x O.D. |
Part
Number (A = End Option and B = Length) |
---|---|---|
SA SiC | 1/4" x 3/8" | SA-375-A-B |
1/2" x 3/4" | SA-750-A-B | |
1/2" x 1" | SA-1000-A-B |
- Standard
diameter to tolerance for size variation and out-of-roundness
is +/-5%
- Camber
tolerance is 1/16" per foot.
- Plain
end "A" is 0: i.e., SA-750-0-12".
- Optional
3/4" NPT steel fitting "A" is 1: i.e., SA-750-1-12". Additional
cost.
Physical Properties | Units | Typical
Values SA |
---|---|---|
Composition (phases) | - | SiC |
Density | G/cm^{3} | 3.10 |
Grain Size | microns | 4-6 |
Hardness (Knoop) | - | 2800 |
Flexural
Strength 4pt @ RT |
MPa x10^{3}lb/in^{2} |
460 60 |
Compressive Strength @ RT |
MPa x10^{3}lb/in^{2} |
3900 560 |
Modulus
of Elasticity @ RT |
GPa x10^{6}lb/in^{2} |
410 59 |
Weibull
Modulus (2 parameters) |
- | 10 |
Poisson Ratio | - | 0.14 |
Fracture
Toughness @ RT Double Torsion & SENB |
MPa/m x10^{3}lb/in^{2}/sqrt in. |
4.60 4.20 |
Coefficient
of Thermal Expansion RT to 700°C |
x10^{-6}mm/mm°K x10^{-6}in/in°F |
4.02 2.20 |
Max.
Service Temperature (air) |
°C °F |
1650 3000 |
Mean Specific Heat @RT | J/gm°K | 0.67 |
Thermal
Conductivity @RT @200°C @400°C |
W/mK BTU/ft h°F |
125.6 72.6 102.6 59.3 77.5 44.8 |
Permeability, RT to 1000°C | Impervious to gases over 31 MPa. | |
Electrical
Resistivity @RT @1000°C |
ohm-cm | 10^{2} - 10^{6} 0.01 - 0.2 |
Emissivity | - | 0.9 |