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358.0 Aluminum vs. 2618A Aluminum

Both 358.0 aluminum and 2618A aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is 358.0 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
72
Elongation at Break, % 3.5 to 6.0
4.5
Fatigue Strength, MPa 100 to 110
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 300 to 320
260
Tensile Strength: Ultimate (UTS), MPa 350 to 370
440
Tensile Strength: Yield (Proof), MPa 290 to 320
410

Thermal Properties

Latent Heat of Fusion, J/g 520
390
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 600
670
Melting Onset (Solidus), °C 560
560
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
37
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110

Otherwise Unclassified Properties

Base Metal Price, % relative 19
11
Density, g/cm3 2.6
3.0
Embodied Carbon, kg CO2/kg material 8.7
8.4
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1090
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 20
19
Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 710
1180
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
47
Strength to Weight: Axial, points 37 to 39
41
Strength to Weight: Bending, points 42 to 44
44
Thermal Diffusivity, mm2/s 63
59
Thermal Shock Resistance, points 16 to 17
19

Alloy Composition

Aluminum (Al), % 89.1 to 91.8
91.5 to 95.2
Beryllium (Be), % 0.1 to 0.3
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.2
1.8 to 2.7
Iron (Fe), % 0 to 0.3
0.9 to 1.4
Magnesium (Mg), % 0.4 to 0.6
1.2 to 1.8
Manganese (Mn), % 0 to 0.2
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 7.6 to 8.6
0.15 to 0.25
Titanium (Ti), % 0.1 to 0.2
0 to 0.2
Zinc (Zn), % 0 to 0.2
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15