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CC766S Brass vs. C94400 Bronze

Both CC766S brass and C94400 bronze 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 CC766S brass and the bottom bar is C94400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
55
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 28
18
Poisson's Ratio 0.31
0.35
Shear Modulus, GPa 40
37
Tensile Strength: Ultimate (UTS), MPa 500
220
Tensile Strength: Yield (Proof), MPa 190
110

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 840
940
Melting Onset (Solidus), °C 800
790
Specific Heat Capacity, J/kg-K 390
350
Thermal Conductivity, W/m-K 89
52
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
10
Electrical Conductivity: Equal Weight (Specific), % IACS 36
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 24
32
Density, g/cm3 8.0
9.1
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 48
54
Embodied Water, L/kg 330
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
33
Resilience: Unit (Modulus of Resilience), kJ/m3 180
60
Stiffness to Weight: Axial, points 7.3
6.1
Stiffness to Weight: Bending, points 20
17
Strength to Weight: Axial, points 17
6.8
Strength to Weight: Bending, points 18
9.0
Thermal Diffusivity, mm2/s 28
17
Thermal Shock Resistance, points 17
8.3

Alloy Composition

Aluminum (Al), % 0.3 to 1.8
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0 to 0.8
Copper (Cu), % 58 to 64
76.1 to 84
Iron (Fe), % 0 to 0.5
0 to 0.15
Lead (Pb), % 0 to 0.5
9.0 to 12
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 2.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.6
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.5
7.0 to 9.0
Zinc (Zn), % 29.5 to 41.7
0 to 0.8