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6101B Aluminum vs. EN 1.4110 Stainless Steel

6101B aluminum belongs to the aluminum alloys classification, while EN 1.4110 stainless steel belongs to the iron 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 6101B aluminum and the bottom bar is EN 1.4110 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 9.1 to 13
11 to 14
Fatigue Strength, MPa 62 to 70
250 to 730
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 120 to 150
470 to 1030
Tensile Strength: Ultimate (UTS), MPa 190 to 250
770 to 1720
Tensile Strength: Yield (Proof), MPa 140 to 180
430 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 160
790
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 630
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 210
30
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 57
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 190
3.2

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 23
90 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 240
480 to 4550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 20 to 25
28 to 62
Strength to Weight: Bending, points 27 to 32
24 to 41
Thermal Diffusivity, mm2/s 87
8.1
Thermal Shock Resistance, points 8.5 to 11
27 to 60

Alloy Composition

Aluminum (Al), % 98.2 to 99.3
0
Carbon (C), % 0
0.48 to 0.6
Chromium (Cr), % 0
13 to 15
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0.1 to 0.3
81.4 to 86
Magnesium (Mg), % 0.35 to 0.6
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Molybdenum (Mo), % 0
0.5 to 0.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.1
0