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C86700 Bronze vs. CC751S Brass

Both C86700 bronze and CC751S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% 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 C86700 bronze and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
5.6
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 630
450
Tensile Strength: Yield (Proof), MPa 250
320

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 880
850
Melting Onset (Solidus), °C 860
810
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
25
Electrical Conductivity: Equal Weight (Specific), % IACS 19
28

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
23
Resilience: Unit (Modulus of Resilience), kJ/m3 290
480
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 28
35
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 55 to 60
62.7 to 66
Iron (Fe), % 1.0 to 3.0
0.25 to 0.5
Lead (Pb), % 0.5 to 1.5
0.8 to 2.2
Manganese (Mn), % 1.0 to 3.5
0 to 0.15
Nickel (Ni), % 0 to 1.0
0 to 0.8
Silicon (Si), % 0
0.65 to 1.1
Tin (Sn), % 0 to 1.5
0 to 0.8
Zinc (Zn), % 30 to 38
27.9 to 35.6
Residuals, % 0 to 1.0
0