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EN AC-41000 Aluminum vs. S20910 Stainless Steel

EN AC-41000 aluminum belongs to the aluminum alloys classification, while S20910 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 AC-41000 aluminum and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 57 to 97
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 4.5
14 to 39
Fatigue Strength, MPa 58 to 71
310 to 460
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 170 to 280
780 to 940
Tensile Strength: Yield (Proof), MPa 80 to 210
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 630
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 170
13
Thermal Expansion, µm/m-K 23
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.8
Embodied Energy, MJ/kg 150
68
Embodied Water, L/kg 1160
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.4 to 11
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 46 to 300
460 to 1640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 18 to 29
28 to 33
Strength to Weight: Bending, points 26 to 35
24 to 27
Thermal Diffusivity, mm2/s 69
3.6
Thermal Shock Resistance, points 7.8 to 13
17 to 21

Alloy Composition

Aluminum (Al), % 95.2 to 97.6
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.6
52.1 to 62.1
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0.3 to 0.5
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0 to 0.050
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 1.6 to 2.4
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.050 to 0.2
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0