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513.0 Aluminum vs. S21603 Stainless Steel

513.0 aluminum belongs to the aluminum alloys classification, while S21603 stainless steel belongs to the iron 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 513.0 aluminum and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
200
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 5.7
45
Fatigue Strength, MPa 97
360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 170
490
Tensile Strength: Ultimate (UTS), MPa 200
690
Tensile Strength: Yield (Proof), MPa 120
390

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 590
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 24
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.8
3.6
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1170
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.8
270
Resilience: Unit (Modulus of Resilience), kJ/m3 100
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 28
22
Thermal Shock Resistance, points 8.8
15

Alloy Composition

Aluminum (Al), % 91.9 to 95.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
57.6 to 67.8
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0 to 0.3
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 1.4 to 2.2
0
Residuals, % 0 to 0.15
0