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Syalon 101

Syalon 101 automotive partsSyalon 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.

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Company address

Contact Details

International Syalons (Newcastle) Limited

International Syalons (Newcastle) Limited

Stephenson Street

Willington Quay

Wallsend

Tyne & Wear

NE28 6TT

England

WorkTel.: +44(0)191 2951010

Fax.: +44(0)191 2633847