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CC760S Brass vs. C87700 Bronze

Both CC760S brass and C87700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 94% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is CC760S brass and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 22
3.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 180
300
Tensile Strength: Yield (Proof), MPa 80
120

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1000
980
Melting Onset (Solidus), °C 940
900
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
45
Electrical Conductivity: Equal Weight (Specific), % IACS 40
48

Otherwise Unclassified Properties

Base Metal Price, % relative 28
29
Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 43
45
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 29
64
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 5.8
9.8
Strength to Weight: Bending, points 8.2
12
Thermal Diffusivity, mm2/s 45
34
Thermal Shock Resistance, points 6.2
11

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0.050 to 0.15
0
Copper (Cu), % 83 to 88
87.5 to 90.5
Iron (Fe), % 0 to 0.15
0 to 0.5
Lead (Pb), % 0 to 0.5
0 to 0.090
Manganese (Mn), % 0 to 0.1
0 to 0.8
Nickel (Ni), % 0 to 0.1
0 to 0.25
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0 to 0.020
2.5 to 3.5
Tin (Sn), % 0 to 0.3
0 to 2.0
Zinc (Zn), % 10.7 to 17
7.0 to 9.0
Residuals, % 0
0 to 0.8