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7010 Aluminum vs. EN 1.4112 Stainless Steel

7010 aluminum belongs to the aluminum alloys classification, while EN 1.4112 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 7010 aluminum and the bottom bar is EN 1.4112 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.9 to 6.8
20
Fatigue Strength, MPa 160 to 190
280
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 300 to 340
470
Tensile Strength: Ultimate (UTS), MPa 520 to 590
750
Tensile Strength: Yield (Proof), MPa 410 to 540
430

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 200
910
Melting Completion (Liquidus), °C 630
1430
Melting Onset (Solidus), °C 480
1390
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 150
15
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1120
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
480
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 47 to 54
27
Strength to Weight: Bending, points 47 to 52
24
Thermal Diffusivity, mm2/s 58
4.1
Thermal Shock Resistance, points 22 to 26
26

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0.85 to 1.0
Chromium (Cr), % 0 to 0.050
17 to 19
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 0 to 0.15
76.6 to 81.2
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0 to 0.050
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0
0.070 to 0.12
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0 to 0.15
0