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C32000 Brass vs. C18200 Copper

Both C32000 brass and C18200 copper are copper alloys. They have 85% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C32000 brass and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8 to 29
11 to 40
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 41
44
Shear Strength, MPa 180 to 280
210 to 320
Tensile Strength: Ultimate (UTS), MPa 270 to 470
310 to 530
Tensile Strength: Yield (Proof), MPa 78 to 390
97 to 450

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1020
1080
Melting Onset (Solidus), °C 990
1070
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 160
320
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
80
Electrical Conductivity: Equal Weight (Specific), % IACS 37
81

Otherwise Unclassified Properties

Base Metal Price, % relative 28
31
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 42
41
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 59
43 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 680
40 to 860
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.8 to 15
9.6 to 16
Strength to Weight: Bending, points 11 to 16
11 to 16
Thermal Diffusivity, mm2/s 47
93
Thermal Shock Resistance, points 9.5 to 16
11 to 18

Alloy Composition


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Chromium (Cr), % 0
0.6 to 1.2
Copper (Cu), % 83.5 to 86.5
98.6 to 99.4
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 1.5 to 2.2
0 to 0.050
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 0
0 to 0.1
Zinc (Zn), % 10.6 to 15
0
Residuals, % 0 to 0.4
0