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CC761S Brass vs. C86700 Bronze

Both CC761S brass and C86700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 73% 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 CC761S brass and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.7
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 540
630
Tensile Strength: Yield (Proof), MPa 340
250

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 960
880
Melting Onset (Solidus), °C 910
860
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 27
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
17
Electrical Conductivity: Equal Weight (Specific), % IACS 43
19

Otherwise Unclassified Properties

Base Metal Price, % relative 27
23
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 45
49
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
86
Resilience: Unit (Modulus of Resilience), kJ/m3 530
290
Stiffness to Weight: Axial, points 7.4
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 8.0
28
Thermal Shock Resistance, points 19
21

Alloy Composition

Aluminum (Al), % 0 to 0.1
1.0 to 3.0
Antimony (Sb), % 0 to 0.050
0
Copper (Cu), % 78 to 83
55 to 60
Iron (Fe), % 0 to 0.6
1.0 to 3.0
Lead (Pb), % 0 to 0.8
0.5 to 1.5
Manganese (Mn), % 0 to 0.2
1.0 to 3.5
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 3.0 to 5.0
0
Tin (Sn), % 0 to 0.3
0 to 1.5
Zinc (Zn), % 8.9 to 19
30 to 38
Residuals, % 0
0 to 1.0