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CC331G Bronze vs. CC760S Brass

Both CC331G bronze and CC760S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is CC331G bronze and the bottom bar is CC760S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
51
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
22
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 620
180
Tensile Strength: Yield (Proof), MPa 240
80

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 1060
1000
Melting Onset (Solidus), °C 1000
940
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 61
150
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
38
Electrical Conductivity: Equal Weight (Specific), % IACS 14
40

Otherwise Unclassified Properties

Base Metal Price, % relative 28
28
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 3.2
2.6
Embodied Energy, MJ/kg 53
43
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
33
Resilience: Unit (Modulus of Resilience), kJ/m3 250
29
Stiffness to Weight: Axial, points 7.6
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 21
5.8
Strength to Weight: Bending, points 19
8.2
Thermal Diffusivity, mm2/s 17
45
Thermal Shock Resistance, points 22
6.2

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0 to 0.010
Arsenic (As), % 0
0.050 to 0.15
Copper (Cu), % 83 to 86.5
83 to 88
Iron (Fe), % 1.5 to 3.5
0 to 0.15
Lead (Pb), % 0 to 0.1
0 to 0.5
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 0.1
Nickel (Ni), % 0 to 1.5
0 to 0.1
Silicon (Si), % 0 to 0.2
0 to 0.020
Tin (Sn), % 0 to 0.2
0 to 0.3
Zinc (Zn), % 0 to 0.5
10.7 to 17