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A380.0 Aluminum vs. AISI 347 Stainless Steel

A380.0 aluminum belongs to the aluminum alloys classification, while AISI 347 stainless steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 A380.0 aluminum and the bottom bar is AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 3.3
34 to 46
Fatigue Strength, MPa 140
220 to 270
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 190
430 to 460
Tensile Strength: Ultimate (UTS), MPa 290
610 to 690
Tensile Strength: Yield (Proof), MPa 160
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 510
290
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 96
16
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 78
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Calomel Potential, mV -710
-80
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.6
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 1040
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
190 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 180
150 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 28
22 to 25
Strength to Weight: Bending, points 34
20 to 22
Thermal Diffusivity, mm2/s 38
4.3
Thermal Shock Resistance, points 13
13 to 15

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.3
64.1 to 74
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 0 to 0.5
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 7.5 to 9.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0