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1050 Aluminum vs. EN 1.4905 Stainless Steel

1050 aluminum belongs to the aluminum alloys classification, while EN 1.4905 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1050 aluminum and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 4.6 to 37
19
Fatigue Strength, MPa 31 to 57
330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 52 to 81
460
Tensile Strength: Ultimate (UTS), MPa 76 to 140
740
Tensile Strength: Yield (Proof), MPa 25 to 120
510

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 170
660
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 650
1440
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
26
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 200
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 1200
90

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
130
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
680
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.8 to 14
26
Strength to Weight: Bending, points 15 to 22
23
Thermal Diffusivity, mm2/s 94
7.0
Thermal Shock Resistance, points 3.4 to 6.2
25

Alloy Composition

Aluminum (Al), % 99.5 to 100
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0
0.090 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
86.2 to 88.8
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.25
0.1 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.030
0
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0 to 0.050
0.18 to 0.25
Zinc (Zn), % 0 to 0.050
0