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CC765S Brass vs. CC767S Brass

Both CC765S brass and CC767S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is CC765S brass and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
86
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 21
34
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 540
430
Tensile Strength: Yield (Proof), MPa 220
150

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 140
120
Melting Completion (Liquidus), °C 860
840
Melting Onset (Solidus), °C 820
790
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 91
110
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
32
Electrical Conductivity: Equal Weight (Specific), % IACS 34
36

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 51
47
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
100
Stiffness to Weight: Axial, points 7.6
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 28
34
Thermal Shock Resistance, points 17
14

Alloy Composition

Aluminum (Al), % 0.5 to 2.5
0.1 to 0.8
Antimony (Sb), % 0 to 0.080
0
Copper (Cu), % 51 to 65
58 to 64
Iron (Fe), % 0.5 to 2.0
0 to 0.5
Lead (Pb), % 0 to 0.5
0 to 0.1
Manganese (Mn), % 0.3 to 3.0
0 to 0.5
Nickel (Ni), % 0 to 6.0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0 to 0.2
Tin (Sn), % 0 to 1.0
0 to 0.1
Zinc (Zn), % 19.8 to 47.7
32.8 to 41.9