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C38000 Brass vs. B390.0 Aluminum

C38000 brass belongs to the copper alloys classification, while B390.0 aluminum belongs to the aluminum alloys. There are 26 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 C38000 brass and the bottom bar is B390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
76
Elongation at Break, % 17
0.88
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
29
Tensile Strength: Ultimate (UTS), MPa 380
320
Tensile Strength: Yield (Proof), MPa 120
250

Thermal Properties

Latent Heat of Fusion, J/g 170
640
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 800
580
Melting Onset (Solidus), °C 760
580
Specific Heat Capacity, J/kg-K 380
880
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 21
20

Otherwise Unclassified Properties

Base Metal Price, % relative 22
11
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 2.7
7.3
Embodied Energy, MJ/kg 46
130
Embodied Water, L/kg 330
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 74
410
Stiffness to Weight: Axial, points 7.1
15
Stiffness to Weight: Bending, points 19
51
Strength to Weight: Axial, points 13
32
Strength to Weight: Bending, points 14
38
Thermal Diffusivity, mm2/s 37
55
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 0 to 0.5
72.7 to 79.6
Copper (Cu), % 55 to 60
4.0 to 5.0
Iron (Fe), % 0 to 0.35
0 to 1.3
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.1
Silicon (Si), % 0
16 to 18
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 35.9 to 43.5
0 to 1.5
Residuals, % 0
0 to 0.2