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2017A Aluminum vs. EN 1.3967 Stainless Steel

2017A aluminum belongs to the aluminum alloys classification, while EN 1.3967 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 1.3967 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.2 to 14
22
Fatigue Strength, MPa 92 to 130
240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 200 to 460
690
Tensile Strength: Yield (Proof), MPa 110 to 290
350

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 220
1070
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 510
1380
Specific Heat Capacity, J/kg-K 880
470
Thermal Expansion, µm/m-K 23
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.2
4.8
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1140
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.7 to 53
130
Resilience: Unit (Modulus of Resilience), kJ/m3 90 to 570
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 19 to 42
24
Strength to Weight: Bending, points 26 to 44
22
Thermal Shock Resistance, points 8.9 to 20
15

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
20 to 21.5
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 0.7
50.3 to 57.8
Magnesium (Mg), % 0.4 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
15 to 17
Niobium (Nb), % 0
0 to 0.25
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.2 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.010
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