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S44735 Stainless Steel vs. 5056 Aluminum

S44735 stainless steel belongs to the iron alloys classification, while 5056 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, 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 S44735 stainless steel and the bottom bar is 5056 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
67
Elongation at Break, % 21
4.9 to 31
Fatigue Strength, MPa 300
140 to 200
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 82
25
Shear Strength, MPa 390
170 to 240
Tensile Strength: Ultimate (UTS), MPa 630
290 to 460
Tensile Strength: Yield (Proof), MPa 460
150 to 410

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 480
910
Thermal Expansion, µm/m-K 11
24

Otherwise Unclassified Properties

Base Metal Price, % relative 21
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 4.4
9.0
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
12 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 520
170 to 1220
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
51
Strength to Weight: Axial, points 23
30 to 48
Strength to Weight: Bending, points 21
36 to 50
Thermal Shock Resistance, points 20
13 to 20

Alloy Composition

Aluminum (Al), % 0
93 to 95.4
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 30
0.050 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 60.7 to 68.4
0 to 0.4
Magnesium (Mg), % 0
4.5 to 5.6
Manganese (Mn), % 0 to 1.0
0.050 to 0.2
Molybdenum (Mo), % 3.6 to 4.2
0
Nickel (Ni), % 0 to 1.0
0
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.0
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15