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EN AC-44500 Aluminum vs. ASTM A148 Cast Steel

EN AC-44500 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 (1, 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 EN AC-44500 aluminum and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
5.7 to 25
Fatigue Strength, MPa 110
280 to 670
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 270
630 to 1300
Tensile Strength: Yield (Proof), MPa 160
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Maximum Temperature: Mechanical, °C 170
400 to 430
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
37 to 47
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3 to 3.3
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.5 to 1.7
Embodied Energy, MJ/kg 140
20 to 22
Embodied Water, L/kg 1050
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 180
400 to 3570
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 29
22 to 46
Strength to Weight: Bending, points 36
21 to 34
Thermal Diffusivity, mm2/s 57
9.9 to 13
Thermal Shock Resistance, points 13
18 to 38