MakeItFrom.com
Menu (ESC)

CC767S Brass vs. CC755S Brass

Both CC767S brass and CC755S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is CC767S brass and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
110
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 34
9.5
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 430
390
Tensile Strength: Yield (Proof), MPa 150
250

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 840
820
Melting Onset (Solidus), °C 790
780
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
27
Electrical Conductivity: Equal Weight (Specific), % IACS 36
30

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
33
Resilience: Unit (Modulus of Resilience), kJ/m3 100
290
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15
14
Strength to Weight: Bending, points 16
15
Thermal Diffusivity, mm2/s 34
38
Thermal Shock Resistance, points 14
13

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0.4 to 0.7
Copper (Cu), % 58 to 64
59.5 to 61
Iron (Fe), % 0 to 0.5
0.050 to 0.2
Lead (Pb), % 0 to 0.1
1.2 to 1.7
Manganese (Mn), % 0 to 0.5
0 to 0.050
Nickel (Ni), % 0 to 1.0
0 to 0.2
Silicon (Si), % 0 to 0.2
0 to 0.050
Tin (Sn), % 0 to 0.1
0 to 0.3
Zinc (Zn), % 32.8 to 41.9
35.8 to 38.9