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6101A Aluminum vs. EN 1.4630 Stainless Steel

6101A aluminum belongs to the aluminum alloys classification, while EN 1.4630 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 6101A aluminum and the bottom bar is EN 1.4630 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 80
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 130
300
Tensile Strength: Ultimate (UTS), MPa 220
480
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 160
800
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 630
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 200
28
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 55
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 180
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.5
Embodied Energy, MJ/kg 150
36
Embodied Water, L/kg 1190
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
92
Resilience: Unit (Modulus of Resilience), kJ/m3 280
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 30
18
Thermal Diffusivity, mm2/s 84
7.5
Thermal Shock Resistance, points 10
17

Alloy Composition

Aluminum (Al), % 97.9 to 99.3
0 to 1.5
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
13 to 16
Copper (Cu), % 0 to 0.050
0 to 0.5
Iron (Fe), % 0 to 0.4
77.1 to 86.7
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0.3 to 0.7
0.2 to 1.5
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.8
Residuals, % 0 to 0.1
0