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5070 Aluminum vs. ASTM A203 Steel

5070 aluminum belongs to the aluminum alloys classification, while ASTM A203 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 5070 aluminum and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 20
22 to 26
Fatigue Strength, MPa 150
210 to 280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 190
330 to 370
Tensile Strength: Ultimate (UTS), MPa 300
520 to 590
Tensile Strength: Yield (Proof), MPa 140
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
52
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.2 to 4.0
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.8
1.6 to 1.7
Embodied Energy, MJ/kg 150
21 to 23
Embodied Water, L/kg 1170
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 150
230 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 31
18 to 21
Strength to Weight: Bending, points 37
18 to 20
Thermal Diffusivity, mm2/s 53
14
Thermal Shock Resistance, points 14
15 to 17