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ACI-ASTM CA15 Steel vs. B535.0 Aluminum

ACI-ASTM CA15 steel belongs to the iron alloys classification, while B535.0 aluminum belongs to the aluminum 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 ACI-ASTM CA15 steel and the bottom bar is B535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
65
Elastic (Young's, Tensile) Modulus, GPa 190
66
Elongation at Break, % 21
10
Fatigue Strength, MPa 370
62
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
25
Tensile Strength: Ultimate (UTS), MPa 700
260
Tensile Strength: Yield (Proof), MPa 570
130

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 750
170
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1500
550
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 25
96
Thermal Expansion, µm/m-K 10
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
24
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
82

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 2.0
9.4
Embodied Energy, MJ/kg 28
160
Embodied Water, L/kg 100
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
22
Resilience: Unit (Modulus of Resilience), kJ/m3 820
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 25
28
Strength to Weight: Bending, points 23
35
Thermal Diffusivity, mm2/s 6.7
40
Thermal Shock Resistance, points 26
11

Alloy Composition

Aluminum (Al), % 0
91.7 to 93.4
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 11.5 to 14
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 81.8 to 88.5
0 to 0.15
Magnesium (Mg), % 0
6.5 to 7.5
Manganese (Mn), % 0 to 1.0
0 to 0.050
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.15
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.15