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EN AC-45000 Aluminum vs. EN 1.4646 Stainless Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while EN 1.4646 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
220
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.1
34
Fatigue Strength, MPa 75
340
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 180
750
Tensile Strength: Yield (Proof), MPa 110
430

Thermal Properties

Latent Heat of Fusion, J/g 470
290
Maximum Temperature: Mechanical, °C 180
910
Melting Completion (Liquidus), °C 640
1390
Melting Onset (Solidus), °C 520
1340
Specific Heat Capacity, J/kg-K 870
480
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 7.7
2.8
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 1070
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
220
Resilience: Unit (Modulus of Resilience), kJ/m3 80
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 8.0
16

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0 to 0.15
17 to 19
Copper (Cu), % 3.0 to 5.0
1.5 to 3.0
Iron (Fe), % 0 to 1.0
59 to 67.3
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
10.5 to 12.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.45
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 5.0 to 7.0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
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