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6070 Aluminum vs. EN 1.4361 Stainless Steel

6070 aluminum belongs to the aluminum alloys classification, while EN 1.4361 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 6070 aluminum and the bottom bar is EN 1.4361 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.6 to 8.6
43
Fatigue Strength, MPa 95 to 130
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 220 to 240
440
Tensile Strength: Ultimate (UTS), MPa 370 to 380
630
Tensile Strength: Yield (Proof), MPa 350
250

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 160
940
Melting Completion (Liquidus), °C 650
1370
Melting Onset (Solidus), °C 570
1330
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 160
14
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1170
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
220
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 42 to 43
21
Thermal Diffusivity, mm2/s 65
3.7
Thermal Shock Resistance, points 16 to 17
15

Alloy Composition

Aluminum (Al), % 94.6 to 98
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0 to 0.1
16.5 to 18.5
Copper (Cu), % 0.15 to 0.4
0
Iron (Fe), % 0 to 0.5
58.7 to 65.8
Magnesium (Mg), % 0.5 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
14 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 1.0 to 1.7
3.7 to 4.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0