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6101B Aluminum vs. EN 1.4805 Stainless Steel

6101B aluminum belongs to the aluminum alloys classification, while EN 1.4805 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 1.4805 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 9.1 to 13
9.0
Fatigue Strength, MPa 62 to 70
130
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 190 to 250
490
Tensile Strength: Yield (Proof), MPa 140 to 180
250

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 160
1000
Melting Completion (Liquidus), °C 640
1390
Melting Onset (Solidus), °C 630
1350
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 210
14
Thermal Expansion, µm/m-K 23
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
4.7
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1190
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 23
37
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 240
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 20 to 25
17
Strength to Weight: Bending, points 27 to 32
18
Thermal Diffusivity, mm2/s 87
3.7
Thermal Shock Resistance, points 8.5 to 11
11

Alloy Composition

Aluminum (Al), % 98.2 to 99.3
0
Carbon (C), % 0
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0.1 to 0.3
44.9 to 56.8
Magnesium (Mg), % 0.35 to 0.6
0
Manganese (Mn), % 0 to 0.050
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.3 to 0.6
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.1
0