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CC760S Brass vs. CC755S Brass

Both CC760S brass and CC755S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is CC760S brass and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
110
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 22
9.5
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 180
390
Tensile Strength: Yield (Proof), MPa 80
250

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 1000
820
Melting Onset (Solidus), °C 940
780
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 19
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
27
Electrical Conductivity: Equal Weight (Specific), % IACS 40
30

Otherwise Unclassified Properties

Base Metal Price, % relative 28
23
Density, g/cm3 8.6
8.1
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 43
46
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
33
Resilience: Unit (Modulus of Resilience), kJ/m3 29
290
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 5.8
14
Strength to Weight: Bending, points 8.2
15
Thermal Diffusivity, mm2/s 45
38
Thermal Shock Resistance, points 6.2
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.4 to 0.7
Arsenic (As), % 0.050 to 0.15
0
Copper (Cu), % 83 to 88
59.5 to 61
Iron (Fe), % 0 to 0.15
0.050 to 0.2
Lead (Pb), % 0 to 0.5
1.2 to 1.7
Manganese (Mn), % 0 to 0.1
0 to 0.050
Nickel (Ni), % 0 to 0.1
0 to 0.2
Silicon (Si), % 0 to 0.020
0 to 0.050
Tin (Sn), % 0 to 0.3
0 to 0.3
Zinc (Zn), % 10.7 to 17
35.8 to 38.9