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ASTM A225 Steel vs. 1100A Aluminum

ASTM A225 steel belongs to the iron alloys classification, while 1100A 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 A225 steel and the bottom bar is 1100A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 21 to 23
4.5 to 34
Fatigue Strength, MPa 330 to 390
35 to 74
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 390 to 520
59 to 99
Tensile Strength: Ultimate (UTS), MPa 620 to 830
89 to 170
Tensile Strength: Yield (Proof), MPa 460 to 550
29 to 150

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 52
230
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
60
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
200

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.8
8.2
Embodied Energy, MJ/kg 24 to 25
150
Embodied Water, L/kg 48
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
6.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
5.9 to 150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 22 to 29
9.1 to 17
Strength to Weight: Bending, points 21 to 25
16 to 25
Thermal Diffusivity, mm2/s 14
93
Thermal Shock Resistance, points 18 to 24
4.0 to 7.6

Comparable Variants