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Grade 350 Maraging Steel vs. Spruce-pine-fir

Grade 350 maraging steel and spruce-pine-fir belong to fundamentally different material chemistries. Grade 350 maraging steel is a metal, while spruce-pine-fir is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (18, 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 spruce-pine-fir.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 750 to 2400
50
Elastic (Young's, Tensile) Modulus, GPa 190
16
Elongation at Break, % 4.1 to 18
1.5
Poisson's Ratio 0.3
0.38
Shear Modulus, GPa 75
1.2
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
85

Thermal Properties

Specific Heat Capacity, J/kg-K 450
1380
Thermal Expansion, µm/m-K 12
6.5

Otherwise Unclassified Properties

Density, g/cm3 8.2
0.5

Common Calculations

Stiffness to Weight: Axial, points 13
18
Strength to Weight: Axial, points 38 to 82
47
Strength to Weight: Bending, points 29 to 49
86
Thermal Shock Resistance, points 35 to 74
58