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6012 Aluminum vs. EN 1.4325 Stainless Steel

6012 aluminum belongs to the aluminum alloys classification, while EN 1.4325 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 6012 aluminum and the bottom bar is EN 1.4325 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1 to 11
45
Fatigue Strength, MPa 55 to 100
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 130 to 190
450
Tensile Strength: Ultimate (UTS), MPa 220 to 320
650
Tensile Strength: Yield (Proof), MPa 110 to 260
210

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 170
930
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 160
16
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.0
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1170
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 28
230
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 480
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 22 to 32
23
Strength to Weight: Bending, points 29 to 37
21
Thermal Diffusivity, mm2/s 62
4.3
Thermal Shock Resistance, points 10 to 14
15

Alloy Composition

Aluminum (Al), % 92.2 to 98
0
Bismuth (Bi), % 0 to 0.7
0
Carbon (C), % 0
0.030 to 0.15
Chromium (Cr), % 0 to 0.3
17 to 19
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
67.8 to 75
Lead (Pb), % 0.4 to 2.0
0
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0 to 2.0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.6 to 1.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0