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355.0 Aluminum vs. 850.0 Aluminum

Both 355.0 aluminum and 850.0 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 355.0 aluminum and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 72 to 83
45
Elastic (Young's, Tensile) Modulus, GPa 71
69
Elongation at Break, % 1.5 to 2.6
7.9
Fatigue Strength, MPa 55 to 70
59
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 150 to 240
100
Tensile Strength: Ultimate (UTS), MPa 200 to 260
140
Tensile Strength: Yield (Proof), MPa 150 to 190
76

Thermal Properties

Latent Heat of Fusion, J/g 470
380
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 620
650
Melting Onset (Solidus), °C 560
370
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.3
Specific Heat Capacity, J/kg-K 890
850
Thermal Conductivity, W/m-K 150 to 170
180
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38 to 43
47
Electrical Conductivity: Equal Weight (Specific), % IACS 120 to 140
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.0
8.5
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 5.9
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 250
42
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 51
44
Strength to Weight: Axial, points 20 to 27
12
Strength to Weight: Bending, points 28 to 33
19
Thermal Diffusivity, mm2/s 60 to 69
69
Thermal Shock Resistance, points 9.1 to 12
6.1

Alloy Composition

Aluminum (Al), % 90.3 to 94.1
88.3 to 93.1
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 1.0 to 1.5
0.7 to 1.3
Iron (Fe), % 0 to 0.6
0 to 0.7
Magnesium (Mg), % 0.4 to 0.6
0 to 0.1
Manganese (Mn), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 0
0.7 to 1.3
Silicon (Si), % 4.5 to 5.5
0 to 0.7
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0
0 to 0.3