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356.0 Aluminum vs. ASTM A204 Steel

356.0 aluminum belongs to the aluminum alloys classification, while ASTM A204 steel belongs to the iron alloys. There are 31 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 356.0 aluminum and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55 to 75
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 2.0 to 3.8
18 to 22
Fatigue Strength, MPa 55 to 75
200 to 220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 140 to 190
330 to 360
Tensile Strength: Ultimate (UTS), MPa 160 to 240
520 to 590
Tensile Strength: Yield (Proof), MPa 100 to 190
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 500
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 570
1420 to 1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150 to 170
52
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 43
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140 to 150
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1110
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 8.2
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 250
220 to 290
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 17 to 26
18 to 21
Strength to Weight: Bending, points 25 to 33
18 to 20
Thermal Diffusivity, mm2/s 64 to 71
14
Thermal Shock Resistance, points 7.6 to 11
15 to 17