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ACI-ASTM CA15M Steel vs. EN AC-51100 Aluminum

ACI-ASTM CA15M steel belongs to the iron alloys classification, while EN AC-51100 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 ACI-ASTM CA15M steel and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
57
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 20
4.5
Fatigue Strength, MPa 330
58
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 690
160
Tensile Strength: Yield (Proof), MPa 510
80

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 27
130
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
34
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.1
8.7
Embodied Energy, MJ/kg 29
150
Embodied Water, L/kg 100
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.0
Resilience: Unit (Modulus of Resilience), kJ/m3 670
47
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 7.2
53
Thermal Shock Resistance, points 25
7.3

Alloy Composition

Aluminum (Al), % 0
94.5 to 97.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 11.5 to 14
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 82.1 to 88.4
0 to 0.55
Magnesium (Mg), % 0
2.5 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 0.45
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.65
0 to 0.55
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15