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EN AC-71100 Aluminum vs. ASTM A148 Cast Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while ASTM A148 cast steel belongs to the iron alloys. There are 28 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 EN AC-71100 aluminum and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
5.7 to 25
Fatigue Strength, MPa 150
280 to 670
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 260
630 to 1300
Tensile Strength: Yield (Proof), MPa 230
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 490
250
Maximum Temperature: Mechanical, °C 170
400 to 430
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 860
470
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3 to 3.3
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.5 to 1.7
Embodied Energy, MJ/kg 140
20 to 22
Embodied Water, L/kg 1010
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 360
400 to 3570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 25
22 to 46
Strength to Weight: Bending, points 31
21 to 34
Thermal Shock Resistance, points 12
18 to 38