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EN 1.4945 Stainless Steel vs. 6060 Aluminum

EN 1.4945 stainless steel belongs to the iron alloys classification, while 6060 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 1.4945 stainless steel and the bottom bar is 6060 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 19 to 34
9.0 to 16
Fatigue Strength, MPa 230 to 350
37 to 70
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 430 to 460
86 to 130
Tensile Strength: Ultimate (UTS), MPa 640 to 740
140 to 220
Tensile Strength: Yield (Proof), MPa 290 to 550
71 to 170

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 920
160
Melting Completion (Liquidus), °C 1490
660
Melting Onset (Solidus), °C 1440
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 14
210
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
54
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
180

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.1
2.7
Embodied Carbon, kg CO2/kg material 5.0
8.3
Embodied Energy, MJ/kg 73
150
Embodied Water, L/kg 150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
13 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
37 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 22 to 25
14 to 23
Strength to Weight: Bending, points 20 to 22
22 to 30
Thermal Diffusivity, mm2/s 3.7
85
Thermal Shock Resistance, points 14 to 16
6.3 to 9.9

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.3
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 15.5 to 17.5
0 to 0.050
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 57.9 to 65.7
0.1 to 0.3
Magnesium (Mg), % 0
0.35 to 0.6
Manganese (Mn), % 0 to 1.5
0 to 0.1
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15