Ferro-Ceramic Grinding Inc. machines over 15 different materials
Lava Grade A
Lava, Grade A Lava is a machineable ceramic material, sometimes referred to as ‘alumino-silicate’, based on its chemical formula.
Lava is a machineable ceramic material, sometimes referred to as ‘alumino-silicate’, based on its chemical formula. It has a high use temperature, and excellent thermal and electrical insulating properties.
|Density, r||g/cm3||ASTM C20||2.30|
|Water Absorption||% @R.T.||ASTM C373||2.5|
|Hardness||knoop (kg/mm2)||Knoop 100g||500|
|Compressive Strength||MPa @ R.T.||ASTM C773||172.5|
|Tensile Strength||MPa @ R.T.||ACMA Test #4||20.7|
|Modulus of Elasticity|
|Flexural Strength (MOR)||MPa @ R.T.||ASTM F417||69|
|Poisson's Ratio, u||-||ASTM C818||-|
|Fracture Toughness, KIc||MPa x m1/2||Notched Beam Test||-|
|Max. Use Temperature|
(* denotes inert atm.)
|ºC||No load cond.||1150|
|Thermal Shock Resistance||DT (ºC)||Quenching||-|
|Thermal Conductivity||W/m-K @ R.T.||ASTM C408||1.98|
|Coefficient of Linear Thermal Expansion, al||mm/m-ºC (~25ºC through ±1000ºC)||ASTM C372||3.6|
|Specific Heat, cp||cal/g-ºC @ R.T.||ASTM C351||0.20|
|Dielectric Constant||1MHz @ R.T.||ASTM D150||5.3|
|Dielectric Strength||kV/mm||ASTM D116||0.1|
|Electrical Resistivity||Wcm @ R.T.||ASTM D1829||1014|
*Although we have no reason to doubt the accuracy of the data presented, Ferro-Ceramic Grinding Inc. offers this information for comparison only, and disclaims any and all liability from error, omissions or inaccuracies, such that it does not constitute a warranty or representation for which we shall assume legal responsibility.