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CC333G Bronze vs. CC767S Brass

Both CC333G bronze and CC767S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is CC333G bronze and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
86
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 13
34
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 45
40
Tensile Strength: Ultimate (UTS), MPa 710
430
Tensile Strength: Yield (Proof), MPa 310
150

Thermal Properties

Latent Heat of Fusion, J/g 230
180
Maximum Temperature: Mechanical, °C 230
120
Melting Completion (Liquidus), °C 1080
840
Melting Onset (Solidus), °C 1020
790
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 38
110
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
36

Otherwise Unclassified Properties

Base Metal Price, % relative 29
23
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 3.5
2.7
Embodied Energy, MJ/kg 56
47
Embodied Water, L/kg 380
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
110
Resilience: Unit (Modulus of Resilience), kJ/m3 410
100
Stiffness to Weight: Axial, points 8.0
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 24
15
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 10
34
Thermal Shock Resistance, points 24
14

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0.1 to 0.8
Bismuth (Bi), % 0 to 0.010
0
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 76 to 83
58 to 64
Iron (Fe), % 3.0 to 5.5
0 to 0.5
Lead (Pb), % 0 to 0.030
0 to 0.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 3.0
0 to 0.5
Nickel (Ni), % 3.7 to 6.0
0 to 1.0
Silicon (Si), % 0 to 0.1
0 to 0.2
Tin (Sn), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.5
32.8 to 41.9