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A390.0 Aluminum vs. N08330 Stainless Steel

A390.0 aluminum belongs to the aluminum alloys classification, while N08330 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 A390.0 aluminum and the bottom bar is N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
180
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.87 to 0.91
34
Fatigue Strength, MPa 70 to 100
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 190 to 290
550
Tensile Strength: Yield (Proof), MPa 190 to 290
230

Thermal Properties

Latent Heat of Fusion, J/g 640
310
Maximum Temperature: Mechanical, °C 170
1050
Melting Completion (Liquidus), °C 580
1390
Melting Onset (Solidus), °C 480
1340
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
12
Thermal Expansion, µm/m-K 20
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 67
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
32
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 7.3
5.4
Embodied Energy, MJ/kg 140
77
Embodied Water, L/kg 950
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6 to 2.6
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 580
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 19 to 30
19
Strength to Weight: Bending, points 27 to 36
18
Thermal Diffusivity, mm2/s 56
3.1
Thermal Shock Resistance, points 9.0 to 14
13

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 4.0 to 5.0
0 to 1.0
Iron (Fe), % 0 to 0.5
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Nickel (Ni), % 0
34 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 16 to 18
0.75 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0