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ACI-ASTM CF10SMnN Steel vs. 7049 Aluminum

ACI-ASTM CF10SMnN steel belongs to the iron alloys classification, while 7049 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 CF10SMnN steel and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 34
6.2 to 7.0
Fatigue Strength, MPa 260
160 to 170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 660
510 to 530
Tensile Strength: Yield (Proof), MPa 330
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 340
370
Maximum Temperature: Mechanical, °C 900
180
Melting Completion (Liquidus), °C 1360
640
Melting Onset (Solidus), °C 1310
480
Specific Heat Capacity, J/kg-K 500
860
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 15
10
Density, g/cm3 7.5
3.1
Embodied Carbon, kg CO2/kg material 3.1
8.1
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 150
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1270 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
45
Strength to Weight: Axial, points 24
46 to 47
Strength to Weight: Bending, points 22
46 to 47
Thermal Shock Resistance, points 15
22 to 23

Alloy Composition

Aluminum (Al), % 0
85.7 to 89.5
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16 to 18
0.1 to 0.22
Copper (Cu), % 0
1.2 to 1.9
Iron (Fe), % 59.1 to 65.4
0 to 0.35
Magnesium (Mg), % 0
2.0 to 2.9
Manganese (Mn), % 7.0 to 9.0
0 to 0.2
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 3.5 to 4.5
0 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
7.2 to 8.2
Residuals, % 0
0 to 0.15