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Grade 350 Maraging Steel vs. Mullite

Grade 350 maraging steel and mullite belong to fundamentally different material chemistries. Grade 350 maraging steel is a metal, while mullite is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (26, 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 350 maraging steel and the bottom bar is mullite.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 750 to 2400
800
Elastic (Young's, Tensile) Modulus, GPa 190
110 to 170
Poisson's Ratio 0.3
0.25
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
160

Thermal Properties

Specific Heat Capacity, J/kg-K 450
950
Thermal Expansion, µm/m-K 12
5.8

Otherwise Unclassified Properties

Density, g/cm3 8.2
2.7 to 3.0

Common Calculations

Stiffness to Weight: Axial, points 13
22 to 31
Stiffness to Weight: Bending, points 23
58 to 62
Strength to Weight: Axial, points 38 to 82
15 to 17
Strength to Weight: Bending, points 29 to 49
22 to 24
Thermal Shock Resistance, points 35 to 74
12 to 19