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ASTM A217 Cast Steel vs. EN AC-21000 Aluminum

ASTM A217 cast steel belongs to the iron alloys classification, while EN AC-21000 aluminum belongs to the aluminum 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 ASTM A217 cast steel and the bottom bar is EN AC-21000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 210
100
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 21 to 27
6.7
Fatigue Strength, MPa 200 to 320
100
Poisson's Ratio 0.28 to 0.29
0.33
Shear Modulus, GPa 73 to 75
27
Tensile Strength: Ultimate (UTS), MPa 540 to 710
340
Tensile Strength: Yield (Proof), MPa 270 to 460
240

Thermal Properties

Latent Heat of Fusion, J/g 250 to 270
390
Maximum Temperature: Mechanical, °C 410 to 600
170
Melting Completion (Liquidus), °C 1450 to 1460
670
Melting Onset (Solidus), °C 1410 to 1420
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 26 to 50
130
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 9.2
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4 to 11
100

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 7.0
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.5 to 2.1
8.0
Embodied Energy, MJ/kg 20 to 28
150
Embodied Water, L/kg 47 to 87
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
21
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 570
390
Stiffness to Weight: Axial, points 13 to 14
13
Stiffness to Weight: Bending, points 24 to 25
46
Strength to Weight: Axial, points 19 to 25
32
Strength to Weight: Bending, points 19 to 23
36
Thermal Diffusivity, mm2/s 6.9 to 14
49
Thermal Shock Resistance, points 16 to 20
15