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CC334G Bronze vs. CC764S Brass

Both CC334G bronze and CC764S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is CC334G bronze and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 5.6
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 45
41
Tensile Strength: Ultimate (UTS), MPa 810
680
Tensile Strength: Yield (Proof), MPa 410
290

Thermal Properties

Latent Heat of Fusion, J/g 240
180
Maximum Temperature: Mechanical, °C 240
130
Melting Completion (Liquidus), °C 1080
850
Melting Onset (Solidus), °C 1020
810
Specific Heat Capacity, J/kg-K 450
400
Thermal Conductivity, W/m-K 41
94
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
23
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 3.6
2.9
Embodied Energy, MJ/kg 59
49
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
80
Resilience: Unit (Modulus of Resilience), kJ/m3 710
390
Stiffness to Weight: Axial, points 8.1
7.6
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 28
24
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 11
30
Thermal Shock Resistance, points 28
22

Alloy Composition

Aluminum (Al), % 10 to 12
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 72 to 84.5
52 to 66
Iron (Fe), % 3.0 to 7.0
0.5 to 2.5
Lead (Pb), % 0 to 0.050
0 to 0.3
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 2.5
0.3 to 4.0
Nickel (Ni), % 4.0 to 7.5
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0 to 0.2
0 to 0.3
Zinc (Zn), % 0 to 0.5
20.7 to 50.2