Nozzles are available in three materials:
All three materials have exceptional intrinsic hardness which enables superior wear and abrasion resistance to a wide range of abrasive solid and liquid media.
In addition, boron carbide is more lightweight versus all other nozzle options.
| Property | Units | Typical Value |
| Composition* | - | SiC |
| Grain Size | µm | 4.10 |
| Density | g/cm3 | 3.15 |
| 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 | 3,900 560 |
| 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 1,000°C | Impervious to gases over 31 MPa | |
Electrical Resistivity @ RT**** @ 1,000°C | ohm-cm ohm-cm | 102 - 108 0.01 - 0.2 |
| Emissivity | 0.9 | |
| Property | Units | Value |
| Composition* | B • C | |
| Density | g/cm3 | 2.50 |
| Hardness (Knoop)** | kg/cm3 | 2,800 |
| Flexural Strength 4 pt @ RT*** | MPa | 425 |
| Compressive Strength @ RT | MPa | 2,900 |
| Modulus of Elasticity @ RT | GPa | 440 |
| Poisson’s Ratio | 0.18 | |
|
Fracture Toughness @ RT Indentation |
MPa x m1/2 | 3.1 |
| Coefficient of Thermal Expansion | x10-6 mm/mmK | 5 |
| Thermal Conductivity @ 20 °C | W/mK | 90 |
* Composition code: B = Boron, C = Graphite, B4C = Boron Carbide
** Knoop 0.1 kg load
*** TestBar Size: 3 x 4 x 45 mm (0.118" x 0.157" x 1.772")
