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AISI 304 Stainless Steel vs. Grade A Lava

AISI 304 stainless steel and grade A lava belong to fundamentally different material chemistries. AISI 304 stainless steel is a metal, while grade A lava is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 10 material properties with values for both materials. Properties with values for just one material (29, 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 AISI 304 stainless steel and the bottom bar is grade A lava.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 7.8
2.3 to 2.5
Maximum Temperature: Corrosion, °C 420
1150
Maximum Temperature: Mechanical, °C 710
650 to 1130
Specific Heat Capacity, J/kg-K 480
840
Strength to Weight: Axial, points 21 to 42
0.77 to 2.5
Strength to Weight: Bending, points 20 to 32
3.2 to 7.3
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
6.9 to 21
Thermal Conductivity, W/m-K 16
2.0
Thermal Diffusivity, mm2/s 4.2
1.0
Thermal Expansion, µm/m-K 17
2.5 to 3.3