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6105 Aluminum vs. EN 1.4378 Stainless Steel

6105 aluminum belongs to the aluminum alloys classification, while EN 1.4378 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 6105 aluminum and the bottom bar is EN 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 9.0 to 16
14 to 34
Fatigue Strength, MPa 95 to 130
340 to 550
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 120 to 170
510 to 680
Tensile Strength: Ultimate (UTS), MPa 190 to 280
760 to 1130
Tensile Strength: Yield (Proof), MPa 120 to 270
430 to 970

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 160
910
Melting Completion (Liquidus), °C 650
1390
Melting Onset (Solidus), °C 600
1350
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 23
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
470 to 2370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 20 to 29
28 to 41
Strength to Weight: Bending, points 28 to 35
24 to 31
Thermal Shock Resistance, points 8.6 to 12
16 to 23

Alloy Composition

Aluminum (Al), % 97.2 to 99
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
17 to 19
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.35
61.2 to 69
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
11.5 to 14.5
Nickel (Ni), % 0
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0.6 to 1.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0