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336.0 Aluminum vs. ACI-ASTM CK20 Steel

336.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CK20 steel belongs to the iron 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 336.0 aluminum and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
150
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.5
37
Fatigue Strength, MPa 80 to 93
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
78
Tensile Strength: Ultimate (UTS), MPa 250 to 320
530
Tensile Strength: Yield (Proof), MPa 190 to 300
260

Thermal Properties

Latent Heat of Fusion, J/g 570
310
Maximum Temperature: Mechanical, °C 210
1100
Melting Completion (Liquidus), °C 570
1400
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 120
14
Thermal Expansion, µm/m-K 19
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 95
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.9
4.4
Embodied Energy, MJ/kg 140
62
Embodied Water, L/kg 1010
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.1 to 1.6
160
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 580
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 25 to 32
19
Strength to Weight: Bending, points 32 to 38
19
Thermal Diffusivity, mm2/s 48
3.7
Thermal Shock Resistance, points 12 to 16
13

Alloy Composition

Aluminum (Al), % 79.1 to 85.8
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
23 to 27
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 0 to 1.2
46.7 to 58
Magnesium (Mg), % 0.7 to 1.3
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 2.0 to 3.0
19 to 22
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 11 to 13
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0