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C69700 Brass vs. 384.0 Aluminum

C69700 brass belongs to the copper alloys classification, while 384.0 aluminum belongs to the aluminum alloys. There are 27 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 C69700 brass and the bottom bar is 384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
74
Elongation at Break, % 25
2.5
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
28
Shear Strength, MPa 300
200
Tensile Strength: Ultimate (UTS), MPa 470
330
Tensile Strength: Yield (Proof), MPa 230
170

Thermal Properties

Latent Heat of Fusion, J/g 240
550
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 930
580
Melting Onset (Solidus), °C 880
530
Specific Heat Capacity, J/kg-K 400
870
Thermal Conductivity, W/m-K 43
96
Thermal Expansion, µm/m-K 19
21

Otherwise Unclassified Properties

Base Metal Price, % relative 26
11
Density, g/cm3 8.3
2.9
Embodied Carbon, kg CO2/kg material 2.7
7.4
Embodied Energy, MJ/kg 44
140
Embodied Water, L/kg 310
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 250
190
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
49
Strength to Weight: Axial, points 16
32
Strength to Weight: Bending, points 16
37
Thermal Diffusivity, mm2/s 13
39
Thermal Shock Resistance, points 16
15

Alloy Composition

Aluminum (Al), % 0
77.3 to 86.5
Copper (Cu), % 75 to 80
3.0 to 4.5
Iron (Fe), % 0 to 0.2
0 to 1.3
Lead (Pb), % 0.5 to 1.5
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 0.4
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Silicon (Si), % 2.5 to 3.5
10.5 to 12
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 13.9 to 22
0 to 3.0
Residuals, % 0
0 to 0.5