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5051A Aluminum vs. C85200 Brass

5051A aluminum belongs to the aluminum alloys classification, while C85200 brass belongs to the copper alloys. There are 28 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 5051A aluminum and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 18 to 21
28
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 170
270
Tensile Strength: Yield (Proof), MPa 56
95

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 190
140
Melting Completion (Liquidus), °C 640
940
Melting Onset (Solidus), °C 610
930
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 150
84
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
18
Electrical Conductivity: Equal Weight (Specific), % IACS 130
19

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 8.5
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1190
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 27
59
Resilience: Unit (Modulus of Resilience), kJ/m3 23
42
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 17 to 18
8.9
Strength to Weight: Bending, points 25
11
Thermal Diffusivity, mm2/s 63
27
Thermal Shock Resistance, points 7.6
9.3

Alloy Composition

Aluminum (Al), % 96.1 to 98.6
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.050
70 to 74
Iron (Fe), % 0 to 0.45
0 to 0.6
Lead (Pb), % 0
1.5 to 3.8
Magnesium (Mg), % 1.4 to 2.1
0
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0.7 to 2.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
20 to 27
Residuals, % 0
0 to 0.9