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EN AC-47000 Aluminum vs. S41425 Stainless Steel

EN AC-47000 aluminum belongs to the aluminum alloys classification, while S41425 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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-47000 aluminum and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
280
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.7
17
Fatigue Strength, MPa 68
450
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 180
920
Tensile Strength: Yield (Proof), MPa 97
750

Thermal Properties

Latent Heat of Fusion, J/g 570
280
Maximum Temperature: Mechanical, °C 170
810
Melting Completion (Liquidus), °C 590
1450
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 7.7
2.9
Embodied Energy, MJ/kg 140
40
Embodied Water, L/kg 1040
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.5
150
Resilience: Unit (Modulus of Resilience), kJ/m3 65
1420
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 19
33
Strength to Weight: Bending, points 27
27
Thermal Diffusivity, mm2/s 55
4.4
Thermal Shock Resistance, points 8.3
33

Alloy Composition

Aluminum (Al), % 82.1 to 89.5
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
12 to 15
Copper (Cu), % 0 to 1.0
0 to 0.3
Iron (Fe), % 0 to 0.8
74 to 81.9
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.050 to 0.55
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0 to 0.3
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 10.5 to 13.5
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.55
0
Residuals, % 0 to 0.25
0