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380.0 Aluminum vs. ACI-ASTM CA15 Steel

380.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CA15 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 380.0 aluminum and the bottom bar is ACI-ASTM CA15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
220
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
21
Fatigue Strength, MPa 140
370
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 320
700
Tensile Strength: Yield (Proof), MPa 160
570

Thermal Properties

Latent Heat of Fusion, J/g 510
280
Maximum Temperature: Mechanical, °C 170
750
Melting Completion (Liquidus), °C 590
1440
Melting Onset (Solidus), °C 540
1500
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 100
25
Thermal Expansion, µm/m-K 22
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 83
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.5
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.5
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 1040
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
140
Resilience: Unit (Modulus of Resilience), kJ/m3 170
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 31
25
Strength to Weight: Bending, points 36
23
Thermal Diffusivity, mm2/s 40
6.7
Thermal Shock Resistance, points 14
26

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 2.0
81.8 to 88.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0