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EN 1.4110 Stainless Steel vs. 6101A Aluminum

EN 1.4110 stainless steel belongs to the iron alloys classification, while 6101A aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 EN 1.4110 stainless steel and the bottom bar is 6101A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 11 to 14
11
Fatigue Strength, MPa 250 to 730
80
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 470 to 1030
130
Tensile Strength: Ultimate (UTS), MPa 770 to 1720
220
Tensile Strength: Yield (Proof), MPa 430 to 1330
190

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 790
160
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 30
200
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
55
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
180

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.3
8.3
Embodied Energy, MJ/kg 33
150
Embodied Water, L/kg 110
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 180
24
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 4550
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 28 to 62
23
Strength to Weight: Bending, points 24 to 41
30
Thermal Diffusivity, mm2/s 8.1
84
Thermal Shock Resistance, points 27 to 60
10

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.3
Carbon (C), % 0.48 to 0.6
0
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 81.4 to 86
0 to 0.4
Magnesium (Mg), % 0
0.4 to 0.9
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0.5 to 0.8
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.3 to 0.7
Sulfur (S), % 0 to 0.015
0
Vanadium (V), % 0 to 0.15
0
Residuals, % 0
0 to 0.1