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1050 Aluminum vs. EN 1.3956 Stainless Steel

1050 aluminum belongs to the aluminum alloys classification, while EN 1.3956 stainless steel belongs to the iron 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 1050 aluminum and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 4.6 to 37
27
Fatigue Strength, MPa 31 to 57
240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 76 to 140
650
Tensile Strength: Yield (Proof), MPa 25 to 120
330

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 650
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 24
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
4.8
Embodied Energy, MJ/kg 160
68
Embodied Water, L/kg 1200
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
150
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.8 to 14
23
Strength to Weight: Bending, points 15 to 22
21
Thermal Shock Resistance, points 3.4 to 6.2
18

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
51.9 to 62.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0.1 to 0.3
Zinc (Zn), % 0 to 0.050
0