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ASTM A204 Steel vs. 6110A Aluminum

ASTM A204 steel belongs to the iron alloys classification, while 6110A aluminum belongs to the aluminum 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 ASTM A204 steel and the bottom bar is 6110A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 18 to 22
11 to 18
Fatigue Strength, MPa 200 to 220
140 to 210
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 330 to 360
220 to 280
Tensile Strength: Ultimate (UTS), MPa 520 to 590
360 to 470
Tensile Strength: Yield (Proof), MPa 290 to 330
250 to 430

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 410
190
Melting Completion (Liquidus), °C 1470
650
Melting Onset (Solidus), °C 1420 to 1430
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 52
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
42
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
9.5
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 1.5
8.4
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 47
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
47 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
450 to 1300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 18 to 21
36 to 47
Strength to Weight: Bending, points 18 to 20
41 to 48
Thermal Diffusivity, mm2/s 14
65
Thermal Shock Resistance, points 15 to 17
16 to 21