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EN AC-48000 Aluminum vs. S41045 Stainless Steel

EN AC-48000 aluminum belongs to the aluminum alloys classification, while S41045 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-48000 aluminum and the bottom bar is S41045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
160
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.0
25
Fatigue Strength, MPa 85 to 86
160
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 220 to 310
430
Tensile Strength: Yield (Proof), MPa 210 to 270
230

Thermal Properties

Latent Heat of Fusion, J/g 570
270
Maximum Temperature: Mechanical, °C 190
740
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 560
1400
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 130
29
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
8.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.2
Embodied Energy, MJ/kg 140
31
Embodied Water, L/kg 1030
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
92
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 23 to 33
16
Strength to Weight: Bending, points 31 to 39
16
Thermal Diffusivity, mm2/s 54
7.8
Thermal Shock Resistance, points 10 to 15
16

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
12 to 13
Copper (Cu), % 0.8 to 1.5
0
Iron (Fe), % 0 to 0.7
83.8 to 88
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Nickel (Ni), % 0.7 to 1.3
0 to 0.5
Niobium (Nb), % 0
0 to 0.6
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10.5 to 13.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0