Features and Benefits
- High oxidation resistance - up to 1,650°C in air
- Excellent corrosion resistance against a wide range of chemicals
- High mechanical strength, erosion and abrasion resistance
- Superior resistance to thermal cycling
- Process tubes
- Sparger tubes
- Sensor tubes
Typical Properties of Hexoloy® SA
| Property | Units | Typical Value |
| Composition* | - | SiC |
| Grain Size | µm | 4.10 |
| Density | g/cm3 | 3.10 |
| Hardness (Knoop)** | kg/mm2 | 2,800 |
| Flexural Strength 4 pt @ RT*** |
MPa x103 lb/in2 |
380 55 |
| Flexural Strength 3 pt @ RT*** |
MPa x103 lb/in2 |
550 80 |
| Compressive Strength @ RT |
MPa x103 lb/in2 |
3900 560 |
| Modulus of Elasticity @ RT |
GPa x106 lb/in2 |
430 62 |
| Weibull Modulus (2 parameter) | 10 | |
| Poisson Ratio | 0.14 | |
|
Fracture Toughness @ RT Double Torsion & SENB |
MPa x m1/2 x103 lb/in2 x in1/2 |
4.60 4.20 |
|
Coefficient of Thermal Expansion RT to 700°C |
x10-6 mm/mmK x10-6 in/in ˚F |
4.02 2.20 |
| Maximum Service Temp. Air |
°C °F |
1,900 3,450 |
| Mean Specific Heat @ RT | J/gmK | 0.67 |
|
Thermal Conductivity @ RT @ 200°C @ 400°C
|
W/mK Btu/ft h °F W/mK Btu/ft h °F 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 ohm-cm |
102 - 108 0.01 - 0.2 |
| Emissivity | 0.9 |
Tube diameters can range from 25 mm to 381 mm with lengths up to 1.4 m. Longer tubes (up to 4.9 m) are available as assemblies using a proprietary bonding process.
Process tubes may also be manufactured via extrusion (Hexoloy® SE) for applications requiring long tubes (up to 5 m) without joints.
