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S44700 Stainless Steel vs. 1050A Aluminum

S44700 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 (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 S44700 stainless steel and the bottom bar is 1050A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
20 to 45
Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 23
1.1 to 33
Fatigue Strength, MPa 300
22 to 55
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 82
26
Shear Strength, MPa 380
44 to 97
Tensile Strength: Ultimate (UTS), MPa 600
68 to 170
Tensile Strength: Yield (Proof), MPa 450
22 to 150

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1410
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 11
24

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.6
8.2
Embodied Energy, MJ/kg 49
150
Embodied Water, L/kg 180
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
1.9 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 480
3.7 to 160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21
6.9 to 18
Strength to Weight: Bending, points 20
14 to 25
Thermal Shock Resistance, points 19
3.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.5 to 100
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
0 to 0.050
Iron (Fe), % 64.9 to 68.5
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.3
0 to 0.050
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 0 to 0.15
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0 to 0.25
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.070