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2095 Aluminum vs. ACI-ASTM CN7M Steel

2095 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 2095 aluminum and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 8.5
44
Fatigue Strength, MPa 200
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 700
480
Tensile Strength: Yield (Proof), MPa 610
200

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Maximum Temperature: Mechanical, °C 210
1100
Melting Completion (Liquidus), °C 660
1410
Melting Onset (Solidus), °C 540
1450
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
32
Density, g/cm3 3.0
8.1
Embodied Carbon, kg CO2/kg material 8.6
5.6
Embodied Energy, MJ/kg 160
78
Embodied Water, L/kg 1470
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
170
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 65
17
Strength to Weight: Bending, points 59
17
Thermal Diffusivity, mm2/s 49
5.6
Thermal Shock Resistance, points 31
12

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 3.9 to 4.6
3.0 to 4.0
Iron (Fe), % 0 to 0.15
37.4 to 48.5
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0 to 1.5
Silver (Ag), % 0.25 to 0.6
0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.18
0
Residuals, % 0 to 0.15
0