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Grade 350 Maraging Steel vs. PSU

Grade 350 maraging steel and PSU belong to fundamentally different material chemistries. Grade 350 maraging steel is a metal, while PSU is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 8 material properties with values for both materials. Properties with values for just one material (24, 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 PSU.

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 750 to 2400
95 to 180
Density, g/cm3 8.2
1.2 to 1.6
Elongation at Break, % 4.1 to 18
2.0 to 52
Specific Heat Capacity, J/kg-K 450
910 to 1000
Strength to Weight: Axial, points 38 to 82
16 to 25
Strength to Weight: Bending, points 29 to 49
30 to 40
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
70 to 140
Thermal Expansion, µm/m-K 12
25 to 57