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296.0 Aluminum vs. ASTM A204 Steel

296.0 aluminum belongs to the aluminum alloys classification, while ASTM A204 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 296.0 aluminum and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 3.2 to 7.1
18 to 22
Fatigue Strength, MPa 47 to 70
200 to 220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 260 to 270
520 to 590
Tensile Strength: Yield (Proof), MPa 120 to 180
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 630
1470
Melting Onset (Solidus), °C 540
1420 to 1430
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 130 to 150
52
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 37
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 99 to 110
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.4
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 7.8
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1110
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 15
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 220
220 to 290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 24 to 25
18 to 21
Strength to Weight: Bending, points 30 to 31
18 to 20
Thermal Diffusivity, mm2/s 51 to 56
14
Thermal Shock Resistance, points 12
15 to 17