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333.0 Aluminum vs. AISI 347 Stainless Steel

333.0 aluminum belongs to the aluminum alloys classification, while AISI 347 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 333.0 aluminum and the bottom bar is AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90 to 110
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.0 to 2.0
34 to 46
Fatigue Strength, MPa 83 to 100
220 to 270
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Shear Strength, MPa 190 to 230
430 to 460
Tensile Strength: Ultimate (UTS), MPa 230 to 280
610 to 690
Tensile Strength: Yield (Proof), MPa 130 to 210
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 520
290
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 100 to 140
16
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26 to 35
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 83 to 110
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
19
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.6
3.6
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 1040
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.1 to 4.6
190 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 290
150 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 22 to 27
22 to 25
Strength to Weight: Bending, points 29 to 34
20 to 22
Thermal Diffusivity, mm2/s 42 to 57
4.3
Thermal Shock Resistance, points 11 to 13
13 to 15

Alloy Composition

Aluminum (Al), % 81.8 to 89
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 1.0
64.1 to 74
Magnesium (Mg), % 0.050 to 0.5
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), % 8.0 to 10
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0