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EN 1.4659 Stainless Steel vs. 6012 Aluminum

EN 1.4659 stainless steel belongs to the iron alloys classification, while 6012 aluminum belongs to the aluminum 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 EN 1.4659 stainless steel and the bottom bar is 6012 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 49
9.1 to 11
Fatigue Strength, MPa 460
55 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
26
Shear Strength, MPa 640
130 to 190
Tensile Strength: Ultimate (UTS), MPa 900
220 to 320
Tensile Strength: Yield (Proof), MPa 480
110 to 260

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1480
640
Melting Onset (Solidus), °C 1430
570
Specific Heat Capacity, J/kg-K 460
890
Thermal Conductivity, W/m-K 12
160
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
45
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 8.2
2.9
Embodied Carbon, kg CO2/kg material 6.5
8.2
Embodied Energy, MJ/kg 89
150
Embodied Water, L/kg 220
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
21 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 550
94 to 480
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
48
Strength to Weight: Axial, points 31
22 to 32
Strength to Weight: Bending, points 25
29 to 37
Thermal Diffusivity, mm2/s 3.2
62
Thermal Shock Resistance, points 19
10 to 14

Alloy Composition

Aluminum (Al), % 0
92.2 to 98
Bismuth (Bi), % 0
0 to 0.7
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 23 to 25
0 to 0.3
Copper (Cu), % 1.0 to 2.0
0 to 0.1
Iron (Fe), % 35.7 to 45.7
0 to 0.5
Lead (Pb), % 0
0.4 to 2.0
Magnesium (Mg), % 0
0.6 to 1.2
Manganese (Mn), % 2.0 to 4.0
0.4 to 1.0
Molybdenum (Mo), % 5.5 to 6.5
0
Nickel (Ni), % 21 to 23
0
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.7
0.6 to 1.4
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 1.5 to 2.5
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15