This technical information has been contributed by
Ferro-Ceramic Grinding, Inc.

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Ceramic Properties - Steatite L-5

This material has applications in ceramic parts where insulating and temperature resistance are a concern. Many insulators and other standoffs are made of Steatite. The cost of this material is relatively low when compared with other ceramic materials.

PropertiesUnitsTestValue
Physical
Chemical FormulaH2Mg3(SiO3)4
Density, rg/cm3ASTM C202.71
Colorbuff
Crystal Structurehexagonal
Water Absorption% @R.T.ASTM C3730.0 - 0.02
HardnessMoh's7.5
Hardnessknoop (kg/mm2)Knoop 100g--
Mechanical
Compressive StrengthMPa @ R.T.ASTM C773621
Tensile StrengthMPa @ R.T.ACMA Test #462
Modulus of Elasticity
(Young's Mod.)
GPaASTM C848138
Flexural Strength (MOR)MPa @ R.T.ASTM F417140
Poisson's Ratio, uASTM C818--
Fracture Toughness, KIcMPa x m1/2Notched Beam Test--
Thermal
Max. Use Temperature
(* denotes inert atm.)
CNo load cond.1425
Thermal Shock ResistanceDT (C)Quenching190
Thermal ConductivityW/m-K @ R.T.ASTM C4082.9
Coefficient of Linear Thermal Expansion, almm/m-C (~25C through 1000C)ASTM C3727.0
Specific Heat, cpcal/g-C @ R.T.ASTM C3510.22
Electrical
Dielectric Constant1MHz @ R.T.ASTM D1506.3
Dielectric StrengthkV/mmASTM D1169.3
Electrical ResistivityWcm @ R.T.ASTM D1829104

This technical information has been contributed by
Ferro-Ceramic Grinding, Inc.

Click here to find suppliers

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