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EN AC-51400 Aluminum vs. ASTM A217 Cast Steel

EN AC-51400 aluminum belongs to the aluminum alloys classification, while ASTM A217 cast steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-51400 aluminum and the bottom bar is ASTM A217 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 71
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 3.4
21 to 27
Fatigue Strength, MPa 85
200 to 320
Poisson's Ratio 0.33
0.28 to 0.29
Shear Modulus, GPa 25
73 to 75
Tensile Strength: Ultimate (UTS), MPa 190
540 to 710
Tensile Strength: Yield (Proof), MPa 120
270 to 460

Thermal Properties

Latent Heat of Fusion, J/g 400
250 to 270
Maximum Temperature: Mechanical, °C 170
410 to 600
Melting Completion (Liquidus), °C 640
1450 to 1460
Melting Onset (Solidus), °C 600
1410 to 1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 110
26 to 50
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.3 to 9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.4 to 11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4 to 7.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 9.1
1.5 to 2.1
Embodied Energy, MJ/kg 150
20 to 28
Embodied Water, L/kg 1170
47 to 87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 110
190 to 570
Stiffness to Weight: Axial, points 14
13 to 14
Stiffness to Weight: Bending, points 51
24 to 25
Strength to Weight: Axial, points 20
19 to 25
Strength to Weight: Bending, points 28
19 to 23
Thermal Diffusivity, mm2/s 46
6.9 to 14
Thermal Shock Resistance, points 8.6
16 to 20