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DAP vs. SAE-AISI 4150 Steel

DAP and SAE-AISI 4150 steel belong to fundamentally different material chemistries. DAP is a polymeric material, while SAE-AISI 4150 steel is a metal. 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 (26, 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 DAP and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 13
190
Elongation at Break, % 31
12 to 20
Tensile Strength: Ultimate (UTS), MPa 28
660 to 1310

Thermal Properties

Specific Heat Capacity, J/kg-K 1450
470
Thermal Conductivity, W/m-K 0.6
42
Thermal Expansion, µm/m-K 25
13

Otherwise Unclassified Properties

Density, g/cm3 1.7
7.8

Common Calculations

Stiffness to Weight: Axial, points 4.1
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 4.5
24 to 47
Strength to Weight: Bending, points 12
22 to 34
Thermal Diffusivity, mm2/s 0.24
11
Thermal Shock Resistance, points 6.3
19 to 39