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Grade 350 Maraging Steel vs. Steatite

Grade 350 maraging steel and steatite belong to fundamentally different material chemistries. Grade 350 maraging steel is a metal, while steatite 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 (25, 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 steatite.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 750 to 2400
540 to 620
Elastic (Young's, Tensile) Modulus, GPa 190
68 to 120
Poisson's Ratio 0.3
0.23
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
60 to 220

Thermal Properties

Specific Heat Capacity, J/kg-K 450
850 to 860
Thermal Expansion, µm/m-K 12
7.0 to 9.0

Otherwise Unclassified Properties

Density, g/cm3 8.2
1.9 to 2.8

Common Calculations

Stiffness to Weight: Axial, points 13
14 to 32
Stiffness to Weight: Bending, points 23
52 to 83
Strength to Weight: Axial, points 38 to 82
6.4 to 32
Strength to Weight: Bending, points 29 to 49
13 to 42
Thermal Shock Resistance, points 35 to 74
5.1 to 33