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Cold Drawn AISI 303 vs. LDPE

Cold drawn AISI 303 and LDPE belong to fundamentally different material chemistries. Cold drawn AISI 303 is a metal, while LDPE is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 14 material properties with values for both materials. Properties with values for just one material (25, 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 cold drawn AISI 303 and the bottom bar is LDPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
0.3
Shear Modulus, GPa 77
0.21
Tensile Strength: Ultimate (UTS), MPa 690
7.0

Thermal Properties

Melting Onset (Solidus), °C 1400
110
Specific Heat Capacity, J/kg-K 480
2300
Thermal Conductivity, W/m-K 16
0.36
Thermal Expansion, µm/m-K 17
220

Otherwise Unclassified Properties

Density, g/cm3 7.8
0.92

Common Calculations

Stiffness to Weight: Axial, points 14
0.18
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
2.1
Strength to Weight: Bending, points 22
8.8
Thermal Diffusivity, mm2/s 4.4
0.17
Thermal Shock Resistance, points 15
7.6