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2095 Aluminum vs. EN 1.4372 Stainless Steel

2095 aluminum belongs to the aluminum alloys classification, while EN 1.4372 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 EN 1.4372 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 8.5
47
Fatigue Strength, MPa 200
330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 410
560
Tensile Strength: Ultimate (UTS), MPa 700
790
Tensile Strength: Yield (Proof), MPa 610
350

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 210
880
Melting Completion (Liquidus), °C 660
1410
Melting Onset (Solidus), °C 540
1370
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.6
2.6
Embodied Energy, MJ/kg 160
38
Embodied Water, L/kg 1470
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
310
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 65
29
Strength to Weight: Bending, points 59
25
Thermal Diffusivity, mm2/s 49
4.0
Thermal Shock Resistance, points 31
17

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 3.9 to 4.6
0
Iron (Fe), % 0 to 0.15
67.5 to 75
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
5.5 to 7.5
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0.050 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.12
0 to 1.0
Silver (Ag), % 0.25 to 0.6
0
Sulfur (S), % 0
0 to 0.015
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