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C34500 Brass vs. 1235 Aluminum

C34500 brass belongs to the copper alloys classification, while 1235 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C34500 brass and the bottom bar is 1235 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 12 to 28
28 to 34
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
26
Shear Strength, MPa 220 to 260
52 to 56
Tensile Strength: Ultimate (UTS), MPa 340 to 430
80 to 84
Tensile Strength: Yield (Proof), MPa 120 to 180
23 to 57

Thermal Properties

Latent Heat of Fusion, J/g 170
400
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 910
640
Melting Onset (Solidus), °C 890
640
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 120
230
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
60
Electrical Conductivity: Equal Weight (Specific), % IACS 29
200

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 45
160
Embodied Water, L/kg 320
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
17 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
3.8 to 24
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 12 to 15
8.2 to 8.6
Strength to Weight: Bending, points 13 to 16
15 to 16
Thermal Diffusivity, mm2/s 37
93
Thermal Shock Resistance, points 11 to 14
3.6 to 3.7

Alloy Composition

Aluminum (Al), % 0
99.35 to 100
Copper (Cu), % 62 to 65
0 to 0.050
Iron (Fe), % 0 to 0.15
0 to 0.65
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.65
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 32 to 36.5
0 to 0.1
Residuals, % 0 to 0.4
0