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EN 1.4959 Stainless Steel vs. 5005A Aluminum

EN 1.4959 stainless steel belongs to the iron alloys classification, while 5005A aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4959 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, % 40
1.1 to 21
Fatigue Strength, MPa 170
38 to 82
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 430
71 to 130
Tensile Strength: Ultimate (UTS), MPa 630
110 to 230
Tensile Strength: Yield (Proof), MPa 190
43 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1090
180
Melting Completion (Liquidus), °C 1400
660
Melting Onset (Solidus), °C 1350
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 12
200
Thermal Expansion, µm/m-K 15
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
52
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
170

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 5.4
8.3
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
2.0 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 96
14 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 22
12 to 24
Strength to Weight: Bending, points 20
19 to 31
Thermal Diffusivity, mm2/s 3.2
82
Thermal Shock Resistance, points 15
5.0 to 10

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
97.5 to 99.3
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 22
0 to 0.1
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 0.050
Iron (Fe), % 39.4 to 50.5
0 to 0.45
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 0 to 1.5
0 to 0.15
Nickel (Ni), % 30 to 34
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.25 to 0.65
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15