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EN AC-51400 Aluminum vs. ASTM A216 Cast Steel

EN AC-51400 aluminum belongs to the aluminum alloys classification, while ASTM A216 cast steel belongs to the iron alloys. There are 29 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 A216 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 3.4
25 to 27
Fatigue Strength, MPa 85
170 to 230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
72
Tensile Strength: Ultimate (UTS), MPa 190
500 to 570
Tensile Strength: Yield (Proof), MPa 120
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 640
1450 to 1460
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 110
49 to 52
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.1 to 7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 9.1
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1170
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 110
140 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 20
18 to 20
Strength to Weight: Bending, points 28
18 to 20
Thermal Diffusivity, mm2/s 46
13 to 14
Thermal Shock Resistance, points 8.6
16 to 18