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Grade 350 Maraging Steel vs. Graphite

Grade 350 maraging steel and graphite belong to fundamentally different material chemistries. Grade 350 maraging steel is a metal, while graphite 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 (21, 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 graphite.

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 750 to 2400
90
Density, g/cm3 8.2
1.8
Elastic (Young's, Tensile) Modulus, GPa 190
21
Stiffness to Weight: Axial, points 13
6.7
Stiffness to Weight: Bending, points 23
53
Strength to Weight: Axial, points 38 to 82
2.9
Strength to Weight: Bending, points 29 to 49
8.7
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
18
Thermal Expansion, µm/m-K 12
4.9
Thermal Shock Resistance, points 35 to 74
12