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CC764S Brass vs. CC140C Copper

Both CC764S brass and CC140C copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 59% of their average alloy composition in common.

For each property being compared, the top bar is CC764S brass and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
110
Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 15
11
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
44
Tensile Strength: Ultimate (UTS), MPa 680
340
Tensile Strength: Yield (Proof), MPa 290
230

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 850
1100
Melting Onset (Solidus), °C 810
1040
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 94
310
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
77
Electrical Conductivity: Equal Weight (Specific), % IACS 36
78

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 49
41
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
34
Resilience: Unit (Modulus of Resilience), kJ/m3 390
220
Stiffness to Weight: Axial, points 7.6
7.3
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 24
10
Strength to Weight: Bending, points 22
12
Thermal Diffusivity, mm2/s 30
89
Thermal Shock Resistance, points 22
12

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0
Antimony (Sb), % 0 to 0.050
0
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 52 to 66
98.8 to 99.6
Iron (Fe), % 0.5 to 2.5
0
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0.3 to 4.0
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 20.7 to 50.2
0