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B390.0 Aluminum vs. C69700 Brass

B390.0 aluminum belongs to the aluminum alloys classification, while C69700 brass belongs to the copper 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 B390.0 aluminum and the bottom bar is C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
110
Elongation at Break, % 0.88
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 29
41
Tensile Strength: Ultimate (UTS), MPa 320
470
Tensile Strength: Yield (Proof), MPa 250
230

Thermal Properties

Latent Heat of Fusion, J/g 640
240
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 580
930
Melting Onset (Solidus), °C 580
880
Specific Heat Capacity, J/kg-K 880
400
Thermal Conductivity, W/m-K 130
43
Thermal Expansion, µm/m-K 20
19

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 7.3
2.7
Embodied Energy, MJ/kg 130
44
Embodied Water, L/kg 940
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
99
Resilience: Unit (Modulus of Resilience), kJ/m3 410
250
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 51
19
Strength to Weight: Axial, points 32
16
Strength to Weight: Bending, points 38
16
Thermal Diffusivity, mm2/s 55
13
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 72.7 to 79.6
0
Copper (Cu), % 4.0 to 5.0
75 to 80
Iron (Fe), % 0 to 1.3
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.5
0 to 0.4
Nickel (Ni), % 0 to 0.1
0
Silicon (Si), % 16 to 18
2.5 to 3.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 1.5
13.9 to 22
Residuals, % 0
0 to 0.5