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3003 Aluminum vs. ASTM A148 Cast Steel

3003 aluminum belongs to the aluminum alloys classification, while ASTM A148 cast steel belongs to the iron alloys. There are 30 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 3003 aluminum and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28 to 65
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.1 to 28
5.7 to 25
Fatigue Strength, MPa 39 to 90
280 to 670
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 110 to 240
630 to 1300
Tensile Strength: Yield (Proof), MPa 40 to 210
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
400 to 430
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 180
37 to 47
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3 to 3.3
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.1
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 0.95 to 63
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 300
400 to 3570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 11 to 24
22 to 46
Strength to Weight: Bending, points 18 to 30
21 to 34
Thermal Diffusivity, mm2/s 71
9.9 to 13
Thermal Shock Resistance, points 4.7 to 10
18 to 38

Comparable Variants