Syalon 101
Syalon 101 is the first of the Si-Al-O-N family of ceramic materials which has been developed, characterised and is now being manufactured under carefully controlled conditions, ensuring the high quality material is consistantly produced.
It is a general purpose engineering grade which is intended for applications demanding high strength, toughness, wear resistance and thermal shock resistance, where temperatures do not continuously exceed 1000°C, such as industrial wear, non-ferrous molten metal handling and metal forming.
The table below lists typical mechanical, thermal and electrical property data for Syalon 101.
Physical property data for Syalon 101
| Property | Value | Units |
|---|---|---|
| 3 point RT Modulus of Rupture (Specimen 3 × 3 × 50mm, span 19.05mm) |
945 | MPa |
| Weibull Modulus | 11 | - |
| RT Unit Tensile Strength | 450 | MPa |
| RT Compressive Strength | >3500 | MPa |
| RT Young's Modulus of Elasticity | 288 | GPa |
| RT Hardness (HRA) | 92 | - |
| RT Hardness (Vickers Hv0.3) | 1500 | Kg/mm2 |
| Fracture Toughness K¹C | 7.7 | MPam½ |
| Poisson's Ratio | 0.23 | - |
| Density | 3.23 | g/cc |
| Porosity | 0 | % |
| Thermal Expansion Coefficient (0-1200°C) | 3.04X10-6 | K-1 |
| Specific Heat | 620 | J/kg/K |
| RT Thermal Conductivity | 21.3 | W/m/K |
| Thermal Shock Resistance | 900 | ΔT°C quenched in cold water |
| RT Electrical Resistivity | 1010 | ohm m |
| RT Dielectric Constant | 8.1 | - |
Typical physical property data obtained under test conditions. All properties have been measured by independent testing authorities. The values given only apply to the test bodies on which they were determined, and therefore can only be recommended values. See our disclaimer.
In addition to this outstanding property data, Syalon 101 also has excellent resistance to corrosion, often required for applications in the chemical and process industries.
The tables below show the corrosion behaviour of Syalon 101 in various acids and alkalis and molten metals.
Syalon 101 corrosion behaviour in acids and alkalis.
| Acid/Alkali | Conc. % | Temp. | Exposure time / hrs | Reaction |
|---|---|---|---|---|
| Acetic Acid | 100 | Boiling | 100 | None |
| Benzoic Acid | 100 | Boiling | 100 | None |
| Formic Acid | 100 | Boiling | 100 | None |
| Hydrochloric Acid | 33 | Boiling | 100 | None |
| Hydrofluric Acid | 100 | Boiling | 100 | Strong |
| Nitric Acid | 69 | Boiling | 100 | Weak |
| Phosphoric Acid | 100 | Boiling | 100 | Weak |
| Sulphuric Acid | 98 | Boiling | 100 | None |
| Ammonium Chloride | 98 | Boiling | 100 | None |
| Potassium Chloride | 100 | Boiling | 100 | None |
| Sodium Chloride | 100 | Boiling | 100 | None |
| Sodium hydroxide | 50 | Boiling | 100 | None |
Syalon 101 corrosion behaviour in molten metals.
| Metal | Temp. / °C | Exposure time / hrs | Reaction |
|---|---|---|---|
| Copper | 1150 | 10 | Strong |
| Brass | 950 | 50 | None |
| Aluminium | 950 | 1000 | None |
| Tin | 300 | 100 | None |
Typical corrosion data obtained under test conditions. The values given only apply to the test bodies on which they were determined, and therefore can only be recommended values. See our disclaimer.
The successful integration of ceramics into engineering systems requires close collaboration between you, the end-user, and ourselves, the material suppliers. Our Technical Department can be contacted to discuss your requirments in detail and assist in exploiting the significant advantages which Syalon ceramics offer.
In addition, see our resources section for guides on designing with ceramics and more property data comparing Syalon 101 with other engineering ceramics.
Alternatively download the Syalon 101 Property Data Sheet PDF.