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C18100 Copper vs. C68100 Brass

Both C18100 copper and C68100 brass are copper alloys. They have 58% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C18100 copper and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 8.3
29
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 47
40
Tensile Strength: Ultimate (UTS), MPa 510
380
Tensile Strength: Yield (Proof), MPa 460
140

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1080
890
Melting Onset (Solidus), °C 1020
870
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 320
98
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
24
Electrical Conductivity: Equal Weight (Specific), % IACS 81
27

Otherwise Unclassified Properties

Base Metal Price, % relative 31
23
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 43
47
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
86
Resilience: Unit (Modulus of Resilience), kJ/m3 900
94
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 16
13
Strength to Weight: Bending, points 16
15
Thermal Diffusivity, mm2/s 94
32
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Chromium (Cr), % 0.4 to 1.2
0
Copper (Cu), % 98.7 to 99.49
56 to 60
Iron (Fe), % 0
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.030 to 0.060
0
Manganese (Mn), % 0
0.010 to 0.5
Silicon (Si), % 0
0.040 to 0.15
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 0
36.4 to 43
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0
0 to 0.5