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EN AC-45000 Aluminum vs. AISI 403 Stainless Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while AISI 403 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-45000 aluminum and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
16 to 25
Fatigue Strength, MPa 75
200 to 340
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 180
530 to 780
Tensile Strength: Yield (Proof), MPa 110
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 470
270
Maximum Temperature: Mechanical, °C 180
740
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 520
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 22
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 81
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
6.5
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 1070
99

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 80
210 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 17
19 to 28
Strength to Weight: Bending, points 24
19 to 24
Thermal Diffusivity, mm2/s 47
7.6
Thermal Shock Resistance, points 8.0
20 to 29

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.15
11.5 to 13
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 0 to 1.0
84.7 to 88.5
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
0 to 1.0
Nickel (Ni), % 0 to 0.45
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 5.0 to 7.0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 2.0
0
Residuals, % 0 to 0.35
0