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CC334G Bronze vs. CC766S Brass

Both CC334G bronze and CC766S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is CC334G bronze and the bottom bar is CC766S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
120
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 5.6
28
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 45
40
Tensile Strength: Ultimate (UTS), MPa 810
500
Tensile Strength: Yield (Proof), MPa 410
190

Thermal Properties

Latent Heat of Fusion, J/g 240
180
Maximum Temperature: Mechanical, °C 240
130
Melting Completion (Liquidus), °C 1080
840
Melting Onset (Solidus), °C 1020
800
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 41
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
36

Otherwise Unclassified Properties

Base Metal Price, % relative 29
24
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 59
48
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
110
Resilience: Unit (Modulus of Resilience), kJ/m3 710
180
Stiffness to Weight: Axial, points 8.1
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 11
28
Thermal Shock Resistance, points 28
17

Alloy Composition

Aluminum (Al), % 10 to 12
0.3 to 1.8
Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 72 to 84.5
58 to 64
Iron (Fe), % 3.0 to 7.0
0 to 0.5
Lead (Pb), % 0 to 0.050
0 to 0.5
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 2.5
0 to 0.5
Nickel (Ni), % 4.0 to 7.5
0 to 2.0
Silicon (Si), % 0 to 0.1
0 to 0.6
Tin (Sn), % 0 to 0.2
0 to 0.5
Zinc (Zn), % 0 to 0.5
29.5 to 41.7