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Grade A Lava vs. Tungsten Carbide

Grade A lava belongs to the oxide-based engineering ceramics classification, while tungsten carbide belongs to the non-oxide engineering ceramics. There are 11 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade A lava and the bottom bar is tungsten carbide.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 76 to 170
4780
Flexural Strength, MPa 28 to 69
1830
Tensile Strength: Ultimate (UTS), MPa 6.9 to 21
350

Thermal Properties

Maximum Temperature: Mechanical, °C 650 to 1130
1000
Specific Heat Capacity, J/kg-K 840
280
Thermal Conductivity, W/m-K 2.0
85
Thermal Expansion, µm/m-K 2.5 to 3.3
5.4

Otherwise Unclassified Properties

Density, g/cm3 2.3 to 2.5
15

Common Calculations

Strength to Weight: Axial, points 0.77 to 2.5
6.6
Strength to Weight: Bending, points 3.2 to 7.3
7.5
Thermal Diffusivity, mm2/s 1.0
21