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C21000 Brass vs. 1050 Aluminum

C21000 brass belongs to the copper alloys classification, while 1050 aluminum belongs to the aluminum alloys. There are 29 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 C21000 brass and the bottom bar is 1050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 2.9 to 50
4.6 to 37
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
26
Shear Strength, MPa 180 to 280
52 to 81
Tensile Strength: Ultimate (UTS), MPa 240 to 450
76 to 140
Tensile Strength: Yield (Proof), MPa 69 to 440
25 to 120

Thermal Properties

Latent Heat of Fusion, J/g 200
400
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 1070
640
Melting Onset (Solidus), °C 1050
650
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 230
230
Thermal Expansion, µm/m-K 18
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
61
Electrical Conductivity: Equal Weight (Specific), % IACS 57
200

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.8
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 42
160
Embodied Water, L/kg 310
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
5.4 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
4.6 to 110
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
50
Strength to Weight: Axial, points 7.4 to 14
7.8 to 14
Strength to Weight: Bending, points 9.6 to 15
15 to 22
Thermal Diffusivity, mm2/s 69
94
Thermal Shock Resistance, points 8.1 to 15
3.4 to 6.2

Alloy Composition

Aluminum (Al), % 0
99.5 to 100
Copper (Cu), % 94 to 96
0 to 0.050
Iron (Fe), % 0 to 0.050
0 to 0.4
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.25
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 3.7 to 6.0
0 to 0.050
Residuals, % 0 to 0.2
0