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S45503 Stainless Steel vs. EN AC-41000 Aluminum

S45503 stainless steel belongs to the iron alloys classification, while EN AC-41000 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 S45503 stainless steel and the bottom bar is EN AC-41000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 410 to 500
57 to 97
Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 4.6 to 6.8
4.5
Fatigue Strength, MPa 710 to 800
58 to 71
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 1610 to 1850
170 to 280
Tensile Strength: Yield (Proof), MPa 1430 to 1700
80 to 210

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
630
Specific Heat Capacity, J/kg-K 470
900
Thermal Expansion, µm/m-K 11
23

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.4
8.2
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 120
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 110
6.4 to 11
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 57 to 65
18 to 29
Strength to Weight: Bending, points 39 to 43
26 to 35
Thermal Shock Resistance, points 56 to 64
7.8 to 13

Alloy Composition

Aluminum (Al), % 0
95.2 to 97.6
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 1.5 to 2.5
0 to 0.1
Iron (Fe), % 72.4 to 78.9
0 to 0.6
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0 to 0.5
0.3 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 7.5 to 9.5
0 to 0.050
Niobium (Nb), % 0.1 to 0.5
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
1.6 to 2.4
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 1.0 to 1.4
0.050 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15