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CC765S Brass vs. C18700 Copper

Both CC765S brass and C18700 copper 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 (2, in this case) are not shown.

For each property being compared, the top bar is CC765S brass and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 21
9.0 to 9.6
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 540
290 to 330
Tensile Strength: Yield (Proof), MPa 220
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 140
200
Melting Completion (Liquidus), °C 860
1080
Melting Onset (Solidus), °C 820
950
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 91
380
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
98
Electrical Conductivity: Equal Weight (Specific), % IACS 34
99

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 51
41
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 220
240 to 280
Stiffness to Weight: Axial, points 7.6
7.1
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 19
9.0 to 10
Strength to Weight: Bending, points 18
11 to 12
Thermal Diffusivity, mm2/s 28
110
Thermal Shock Resistance, points 17
10 to 12

Alloy Composition


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Aluminum (Al), % 0.5 to 2.5
0
Antimony (Sb), % 0 to 0.080
0
Copper (Cu), % 51 to 65
98 to 99.2
Iron (Fe), % 0.5 to 2.0
0
Lead (Pb), % 0 to 0.5
0.8 to 1.5
Manganese (Mn), % 0.3 to 3.0
0
Nickel (Ni), % 0 to 6.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19.8 to 47.7
0
Residuals, % 0
0 to 0.5