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A390.0 Aluminum vs. EN 1.4646 Stainless Steel

A390.0 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 A390.0 aluminum and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
220
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.87 to 0.91
34
Fatigue Strength, MPa 70 to 100
340
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 190 to 290
750
Tensile Strength: Yield (Proof), MPa 190 to 290
430

Thermal Properties

Latent Heat of Fusion, J/g 640
290
Maximum Temperature: Mechanical, °C 170
910
Melting Completion (Liquidus), °C 580
1390
Melting Onset (Solidus), °C 480
1340
Specific Heat Capacity, J/kg-K 880
480
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 7.3
2.8
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 950
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6 to 2.6
220
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 580
460
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 19 to 30
27
Strength to Weight: Bending, points 27 to 36
24
Thermal Shock Resistance, points 9.0 to 14
16

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
0
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 4.0 to 5.0
1.5 to 3.0
Iron (Fe), % 0 to 0.5
59 to 67.3
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
10.5 to 12.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 16 to 18
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0