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EN 1.4971 Stainless Steel vs. 5005 Aluminum

EN 1.4971 stainless steel belongs to the iron alloys classification, while 5005 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4971 stainless steel and the bottom bar is 5005 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
28 to 64
Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 34
1.1 to 23
Fatigue Strength, MPa 270
38 to 86
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
26
Shear Strength, MPa 530
70 to 130
Tensile Strength: Ultimate (UTS), MPa 800
110 to 230
Tensile Strength: Yield (Proof), MPa 340
41 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
630
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
200
Thermal Expansion, µm/m-K 15
24

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.3
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 300
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
2.3 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 280
12 to 320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 26
11 to 23
Strength to Weight: Bending, points 23
19 to 31
Thermal Diffusivity, mm2/s 3.4
82
Thermal Shock Resistance, points 19
4.9 to 10

Alloy Composition

Aluminum (Al), % 0
97 to 99.5
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0 to 0.1
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 24.3 to 37.1
0 to 0.7
Magnesium (Mg), % 0
0.5 to 1.1
Manganese (Mn), % 0 to 2.0
0 to 0.2
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15