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6023 Aluminum vs. ASTM A148 Cast Steel

6023 aluminum belongs to the aluminum alloys classification, while ASTM A148 cast steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 6023 aluminum and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 11
5.7 to 25
Fatigue Strength, MPa 120 to 130
280 to 670
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 360
630 to 1300
Tensile Strength: Yield (Proof), MPa 300 to 310
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
400 to 430
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 170
37 to 47
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.3 to 3.3
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.5 to 1.7
Embodied Energy, MJ/kg 150
20 to 22
Embodied Water, L/kg 1180
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
400 to 3570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 35 to 36
22 to 46
Strength to Weight: Bending, points 40
21 to 34
Thermal Diffusivity, mm2/s 67
9.9 to 13
Thermal Shock Resistance, points 16
18 to 38

Comparable Variants