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A206.0 Aluminum vs. AISI 317 Stainless Steel

A206.0 aluminum belongs to the aluminum alloys classification, while AISI 317 stainless steel belongs to the iron alloys. There are 31 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 A206.0 aluminum and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 4.2 to 10
35 to 55
Fatigue Strength, MPa 90 to 180
250 to 330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 260
420 to 470
Tensile Strength: Ultimate (UTS), MPa 390 to 440
580 to 710
Tensile Strength: Yield (Proof), MPa 250 to 380
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
590
Melting Completion (Liquidus), °C 670
1400
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
21
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.0
4.3
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
150 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 36 to 41
20 to 25
Strength to Weight: Bending, points 39 to 43
20 to 22
Thermal Diffusivity, mm2/s 48
4.1
Thermal Shock Resistance, points 17 to 19
12 to 15

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.1
58 to 68
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.050
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.050
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0