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EN 1.3956 Stainless Steel vs. 5005A Aluminum

EN 1.3956 stainless steel belongs to the iron alloys classification, while 5005A aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 1.3956 stainless steel and the bottom bar is 5005A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 27
1.1 to 21
Fatigue Strength, MPa 240
38 to 82
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 650
110 to 230
Tensile Strength: Yield (Proof), MPa 330
43 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1080
180
Melting Completion (Liquidus), °C 1420
660
Melting Onset (Solidus), °C 1380
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 13
24

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.8
8.3
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
2.0 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 270
14 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 23
12 to 24
Strength to Weight: Bending, points 21
19 to 31
Thermal Shock Resistance, points 18
5.0 to 10

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.3
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0 to 0.1
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 51.9 to 62.1
0 to 0.45
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 4.0 to 6.0
0 to 0.15
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15