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CC767S Brass vs. C94500 Bronze

Both CC767S brass and C94500 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 62% of their average alloy composition in common.

For each property being compared, the top bar is CC767S brass and the bottom bar is C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
50
Elastic (Young's, Tensile) Modulus, GPa 110
92
Elongation at Break, % 34
12
Poisson's Ratio 0.31
0.36
Shear Modulus, GPa 40
34
Tensile Strength: Ultimate (UTS), MPa 430
170
Tensile Strength: Yield (Proof), MPa 150
83

Thermal Properties

Latent Heat of Fusion, J/g 180
160
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 840
940
Melting Onset (Solidus), °C 790
800
Specific Heat Capacity, J/kg-K 390
330
Thermal Conductivity, W/m-K 110
52
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
10
Electrical Conductivity: Equal Weight (Specific), % IACS 36
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 8.0
9.3
Embodied Carbon, kg CO2/kg material 2.7
3.2
Embodied Energy, MJ/kg 47
51
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
17
Resilience: Unit (Modulus of Resilience), kJ/m3 100
37
Stiffness to Weight: Axial, points 7.3
5.5
Stiffness to Weight: Bending, points 20
16
Strength to Weight: Axial, points 15
5.2
Strength to Weight: Bending, points 16
7.4
Thermal Diffusivity, mm2/s 34
17
Thermal Shock Resistance, points 14
6.7

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Copper (Cu), % 58 to 64
66.7 to 78
Iron (Fe), % 0 to 0.5
0 to 0.15
Lead (Pb), % 0 to 0.1
16 to 22
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.1
6.0 to 8.0
Zinc (Zn), % 32.8 to 41.9
0 to 1.2