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1235 Aluminum vs. CC750S Brass

1235 aluminum belongs to the aluminum alloys classification, while CC750S brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 1235 aluminum and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 28 to 34
13
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 80 to 84
200
Tensile Strength: Yield (Proof), MPa 23 to 57
80

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 640
860
Melting Onset (Solidus), °C 640
810
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 230
110
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
24
Electrical Conductivity: Equal Weight (Specific), % IACS 200
26

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1190
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
22
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
30
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 8.2 to 8.6
6.8
Strength to Weight: Bending, points 15 to 16
9.3
Thermal Diffusivity, mm2/s 93
35
Thermal Shock Resistance, points 3.6 to 3.7
6.7

Alloy Composition

Aluminum (Al), % 99.35 to 100
0 to 0.1
Copper (Cu), % 0 to 0.050
62 to 67
Iron (Fe), % 0 to 0.65
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.65
0 to 0.050
Tin (Sn), % 0
0 to 1.5
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
26.3 to 36