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711.0 Aluminum vs. ASTM A225 Steel

711.0 aluminum belongs to the aluminum alloys classification, while ASTM A225 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 711.0 aluminum and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
190 to 250
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 7.8
21 to 23
Fatigue Strength, MPa 100
330 to 390
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 220
620 to 830
Tensile Strength: Yield (Proof), MPa 140
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 610
1420
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 160
52
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
1.8
Embodied Energy, MJ/kg 150
24 to 25
Embodied Water, L/kg 1120
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 140
580 to 820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 20
22 to 29
Strength to Weight: Bending, points 26
21 to 25
Thermal Diffusivity, mm2/s 61
14
Thermal Shock Resistance, points 9.3
18 to 24