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5070 Aluminum vs. EN 1.4958 Stainless Steel

5070 aluminum belongs to the aluminum alloys classification, while EN 1.4958 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 5070 aluminum and the bottom bar is EN 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 20
40
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 190
430
Tensile Strength: Ultimate (UTS), MPa 300
630
Tensile Strength: Yield (Proof), MPa 140
190

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 190
1090
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 550
1350
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
12
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.8
5.3
Embodied Energy, MJ/kg 150
75
Embodied Water, L/kg 1170
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
190
Resilience: Unit (Modulus of Resilience), kJ/m3 150
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 31
22
Strength to Weight: Bending, points 37
20
Thermal Diffusivity, mm2/s 53
3.2
Thermal Shock Resistance, points 14
15

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
0.2 to 0.5
Carbon (C), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.3
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 0 to 0.4
41.1 to 50.6
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0 to 1.5
Nickel (Ni), % 0
30 to 32.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.25
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0.2 to 0.5
Zinc (Zn), % 0.4 to 0.8
0
Residuals, % 0 to 0.15
0