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6070 Aluminum vs. EN 1.4372 Stainless Steel

6070 aluminum belongs to the aluminum alloys classification, while EN 1.4372 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 1.4372 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 5.6 to 8.6
47
Fatigue Strength, MPa 95 to 130
330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 220 to 240
560
Tensile Strength: Ultimate (UTS), MPa 370 to 380
790
Tensile Strength: Yield (Proof), MPa 350
350

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 160
880
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 1170
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
310
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 38
29
Strength to Weight: Bending, points 42 to 43
25
Thermal Diffusivity, mm2/s 65
4.0
Thermal Shock Resistance, points 16 to 17
17

Alloy Composition

Aluminum (Al), % 94.6 to 98
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
16 to 18
Copper (Cu), % 0.15 to 0.4
0
Iron (Fe), % 0 to 0.5
67.5 to 75
Magnesium (Mg), % 0.5 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
5.5 to 7.5
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0.050 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 1.0 to 1.7
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0