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2017A Aluminum vs. EN 1.4527 Stainless Steel

2017A aluminum belongs to the aluminum alloys classification, while EN 1.4527 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 2017A aluminum and the bottom bar is EN 1.4527 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.2 to 14
40
Fatigue Strength, MPa 92 to 130
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 200 to 460
480
Tensile Strength: Yield (Proof), MPa 110 to 290
190

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Maximum Temperature: Mechanical, °C 220
1100
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 510
1360
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 150
15
Thermal Expansion, µm/m-K 23
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
32
Density, g/cm3 3.0
8.1
Embodied Carbon, kg CO2/kg material 8.2
5.6
Embodied Energy, MJ/kg 150
78
Embodied Water, L/kg 1140
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.7 to 53
150
Resilience: Unit (Modulus of Resilience), kJ/m3 90 to 570
95
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 19 to 42
17
Strength to Weight: Bending, points 26 to 44
17
Thermal Diffusivity, mm2/s 56
4.0
Thermal Shock Resistance, points 8.9 to 20
12

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0 to 0.1
19 to 22
Copper (Cu), % 3.5 to 4.5
3.0 to 4.0
Iron (Fe), % 0 to 0.7
37.4 to 48.5
Magnesium (Mg), % 0.4 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.2 to 0.8
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0