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2095 Aluminum vs. S30452 Stainless Steel

2095 aluminum belongs to the aluminum alloys classification, while S30452 stainless steel belongs to the iron alloys. There are 30 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 S30452 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 8.5
34
Fatigue Strength, MPa 200
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 410
440
Tensile Strength: Ultimate (UTS), MPa 700
660
Tensile Strength: Yield (Proof), MPa 610
310

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 210
960
Melting Completion (Liquidus), °C 660
1420
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
15
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.6
3.0
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 1470
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
180
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 65
23
Strength to Weight: Bending, points 59
22
Thermal Diffusivity, mm2/s 49
4.2
Thermal Shock Resistance, points 31
15

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 3.9 to 4.6
0
Iron (Fe), % 0 to 0.15
66.3 to 73.8
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0 to 2.0
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0.16 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.12
0 to 0.75
Silver (Ag), % 0.25 to 0.6
0
Sulfur (S), % 0
0 to 0.030
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