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EN AC-44400 Aluminum vs. S35315 Stainless Steel

EN AC-44400 aluminum belongs to the aluminum alloys classification, while S35315 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-44400 aluminum and the bottom bar is S35315 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 61
190
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 4.1
46
Fatigue Strength, MPa 79
280
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 210
740
Tensile Strength: Yield (Proof), MPa 110
300

Thermal Properties

Latent Heat of Fusion, J/g 540
330
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 600
1370
Melting Onset (Solidus), °C 590
1330
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 140
12
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
34
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 7.8
5.7
Embodied Energy, MJ/kg 150
81
Embodied Water, L/kg 1080
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.3
270
Resilience: Unit (Modulus of Resilience), kJ/m3 85
230
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 23
26
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 60
3.1
Thermal Shock Resistance, points 9.8
17

Alloy Composition

Aluminum (Al), % 87.1 to 92
0
Carbon (C), % 0
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.1
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.65
33.6 to 40.6
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 0 to 0.050
34 to 36
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 8.0 to 11
1.2 to 2.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0