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6360 Aluminum vs. AISI 303 Stainless Steel

6360 aluminum belongs to the aluminum alloys classification, while AISI 303 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 6360 aluminum and the bottom bar is AISI 303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 9.0 to 18
40 to 51
Fatigue Strength, MPa 31 to 67
230 to 360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 76 to 130
430 to 470
Tensile Strength: Ultimate (UTS), MPa 120 to 220
600 to 690
Tensile Strength: Yield (Proof), MPa 57 to 170
230 to 420

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 160
930
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 630
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 210
16
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 180
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1190
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 19
240
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 210
140 to 440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 13 to 23
21 to 25
Strength to Weight: Bending, points 20 to 30
20 to 22
Thermal Diffusivity, mm2/s 86
4.4
Thermal Shock Resistance, points 5.5 to 9.9
13 to 15

Alloy Composition

Aluminum (Al), % 97.8 to 99.3
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.050
17 to 19
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0.1 to 0.3
67.3 to 74.9
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0.020 to 0.15
0 to 2.0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0.35 to 0.8
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0