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CC334G Bronze vs. CC761S Brass

Both CC334G bronze and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is CC334G bronze and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 5.6
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
42
Tensile Strength: Ultimate (UTS), MPa 810
540
Tensile Strength: Yield (Proof), MPa 410
340

Thermal Properties

Latent Heat of Fusion, J/g 240
260
Maximum Temperature: Mechanical, °C 240
170
Melting Completion (Liquidus), °C 1080
960
Melting Onset (Solidus), °C 1020
910
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 41
27
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
43

Otherwise Unclassified Properties

Base Metal Price, % relative 29
27
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 59
45
Embodied Water, L/kg 390
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
41
Resilience: Unit (Modulus of Resilience), kJ/m3 710
530
Stiffness to Weight: Axial, points 8.1
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 11
8.0
Thermal Shock Resistance, points 28
19

Alloy Composition

Aluminum (Al), % 10 to 12
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 72 to 84.5
78 to 83
Iron (Fe), % 3.0 to 7.0
0 to 0.6
Lead (Pb), % 0 to 0.050
0 to 0.8
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 2.5
0 to 0.2
Nickel (Ni), % 4.0 to 7.5
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
3.0 to 5.0
Tin (Sn), % 0 to 0.2
0 to 0.3
Zinc (Zn), % 0 to 0.5
8.9 to 19