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EN AC-46500 Aluminum vs. AISI 420 Stainless Steel

EN AC-46500 aluminum belongs to the aluminum alloys classification, while AISI 420 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-46500 aluminum and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
190
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 1.0
8.0 to 15
Fatigue Strength, MPa 110
220 to 670
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 270
690 to 1720
Tensile Strength: Yield (Proof), MPa 160
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 520
280
Maximum Temperature: Mechanical, °C 180
620
Melting Completion (Liquidus), °C 610
1510
Melting Onset (Solidus), °C 520
1450
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 100
27
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 81
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.5
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.6
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 1030
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 170
380 to 4410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 26
25 to 62
Strength to Weight: Bending, points 32
22 to 41
Thermal Diffusivity, mm2/s 41
7.3
Thermal Shock Resistance, points 12
25 to 62

Alloy Composition

Aluminum (Al), % 77.9 to 90
0
Carbon (C), % 0
0.15 to 0.4
Chromium (Cr), % 0 to 0.15
12 to 14
Copper (Cu), % 2.0 to 4.0
0
Iron (Fe), % 0 to 1.3
82.3 to 87.9
Lead (Pb), % 0 to 0.35
0
Magnesium (Mg), % 0.050 to 0.55
0
Manganese (Mn), % 0 to 0.55
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.55
0 to 0.75
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 8.0 to 11
0 to 1.0
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 3.0
0
Residuals, % 0 to 0.25
0