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EN AC-44000 Aluminum vs. S17600 Stainless Steel

EN AC-44000 aluminum belongs to the aluminum alloys classification, while S17600 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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-44000 aluminum and the bottom bar is S17600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
270 to 410
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 7.3
8.6 to 11
Fatigue Strength, MPa 64
300 to 680
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 180
940 to 1490
Tensile Strength: Yield (Proof), MPa 86
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 560
290
Maximum Temperature: Mechanical, °C 170
890
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 590
1390
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.8
2.9
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1070
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 51
850 to 4390
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 20
34 to 54
Strength to Weight: Bending, points 28
28 to 37
Thermal Diffusivity, mm2/s 61
4.1
Thermal Shock Resistance, points 8.4
31 to 50

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0 to 0.4
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16 to 17.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
71.3 to 77.6
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0
6.0 to 7.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10 to 11.8
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0.4 to 1.2
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0