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Grade 350 Maraging Steel vs. PBT

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 8.2
1.3 to 1.5
Elastic (Young's, Tensile) Modulus, GPa 190
2.7 to 8.7
Elongation at Break, % 4.1 to 18
2.5 to 43
Melting Onset (Solidus), °C 1420
230
Specific Heat Capacity, J/kg-K 450
1040 to 1200
Stiffness to Weight: Axial, points 13
1.1 to 3.2
Stiffness to Weight: Bending, points 23
35 to 45
Strength to Weight: Axial, points 38 to 82
12 to 25
Strength to Weight: Bending, points 29 to 49
25 to 38
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
58 to 140