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1070 Aluminum vs. C34500 Brass

1070 aluminum belongs to the aluminum alloys classification, while C34500 brass belongs to the copper 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 1070 aluminum and the bottom bar is C34500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
100
Elongation at Break, % 4.5 to 39
12 to 28
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Shear Strength, MPa 48 to 79
220 to 260
Tensile Strength: Ultimate (UTS), MPa 73 to 140
340 to 430
Tensile Strength: Yield (Proof), MPa 17 to 120
120 to 180

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
26
Electrical Conductivity: Equal Weight (Specific), % IACS 200
29

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 1200
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
69 to 160
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 7.5 to 14
12 to 15
Strength to Weight: Bending, points 14 to 22
13 to 16
Thermal Diffusivity, mm2/s 94
37
Thermal Shock Resistance, points 3.3 to 6.1
11 to 14

Alloy Composition

Aluminum (Al), % 99.7 to 100
0
Copper (Cu), % 0 to 0.040
62 to 65
Iron (Fe), % 0 to 0.25
0 to 0.15
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.040
32 to 36.5
Residuals, % 0
0 to 0.4