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ACI-ASTM CG6MMN Steel vs. 5049 Aluminum

ACI-ASTM CG6MMN steel belongs to the iron alloys classification, while 5049 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 CG6MMN steel and the bottom bar is 5049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 34
2.0 to 18
Fatigue Strength, MPa 260
79 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 670
210 to 330
Tensile Strength: Yield (Proof), MPa 320
91 to 280

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1080
190
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1380
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 17
24

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.8
8.5
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
6.0 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 260
59 to 570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 24
22 to 34
Strength to Weight: Bending, points 22
29 to 39
Thermal Shock Resistance, points 14
9.3 to 15

Alloy Composition

Aluminum (Al), % 0
94.7 to 97.9
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 51.9 to 62.1
0 to 0.5
Magnesium (Mg), % 0
1.6 to 2.5
Manganese (Mn), % 4.0 to 6.0
0.5 to 1.1
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15