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ACI-ASTM CF10SMnN Steel vs. 7075 Aluminum

ACI-ASTM CF10SMnN steel belongs to the iron alloys classification, while 7075 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 7075 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 34
1.8 to 12
Fatigue Strength, MPa 260
110 to 190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 660
240 to 590
Tensile Strength: Yield (Proof), MPa 330
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 340
380
Maximum Temperature: Mechanical, °C 900
200
Melting Completion (Liquidus), °C 1360
640
Melting Onset (Solidus), °C 1310
480
Specific Heat Capacity, J/kg-K 500
870
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 15
10
Density, g/cm3 7.5
3.0
Embodied Carbon, kg CO2/kg material 3.1
8.3
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 150
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 280
110 to 1870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
46
Strength to Weight: Axial, points 24
22 to 54
Strength to Weight: Bending, points 22
28 to 52
Thermal Shock Resistance, points 15
10 to 25

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.4
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 16 to 18
0.18 to 0.28
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 59.1 to 65.4
0 to 0.5
Magnesium (Mg), % 0
2.1 to 2.9
Manganese (Mn), % 7.0 to 9.0
0 to 0.3
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 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15