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EN 1.4646 Stainless Steel vs. 1050A Aluminum

EN 1.4646 stainless steel belongs to the iron alloys classification, while 1050A aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 1.4646 stainless steel and the bottom bar is 1050A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
20 to 45
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 34
1.1 to 33
Fatigue Strength, MPa 340
22 to 55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 500
44 to 97
Tensile Strength: Ultimate (UTS), MPa 750
68 to 170
Tensile Strength: Yield (Proof), MPa 430
22 to 150

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 910
170
Melting Completion (Liquidus), °C 1390
660
Melting Onset (Solidus), °C 1340
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 17
24

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.0
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.2
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 160
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
1.9 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 460
3.7 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 27
6.9 to 18
Strength to Weight: Bending, points 24
14 to 25
Thermal Shock Resistance, points 16
3.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.5 to 100
Carbon (C), % 0.020 to 0.1
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 1.5 to 3.0
0 to 0.050
Iron (Fe), % 59 to 67.3
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 10.5 to 12.5
0 to 0.050
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.070