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C84500 Brass vs. C87700 Bronze

Both C84500 brass and C87700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% 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 C84500 brass and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 28
3.6
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 39
42
Tensile Strength: Ultimate (UTS), MPa 240
300
Tensile Strength: Yield (Proof), MPa 97
120

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Maximum Temperature: Mechanical, °C 150
180
Melting Completion (Liquidus), °C 980
980
Melting Onset (Solidus), °C 840
900
Specific Heat Capacity, J/kg-K 360
400
Thermal Conductivity, W/m-K 72
120
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
45
Electrical Conductivity: Equal Weight (Specific), % IACS 17
48

Otherwise Unclassified Properties

Base Metal Price, % relative 28
29
Density, g/cm3 8.7
8.5
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 340
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 45
64
Stiffness to Weight: Axial, points 6.6
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.7
9.8
Strength to Weight: Bending, points 9.8
12
Thermal Diffusivity, mm2/s 23
34
Thermal Shock Resistance, points 8.6
11

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0 to 0.1
Copper (Cu), % 77 to 79
87.5 to 90.5
Iron (Fe), % 0 to 0.4
0 to 0.5
Lead (Pb), % 6.0 to 7.5
0 to 0.090
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0 to 1.0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.15
Silicon (Si), % 0 to 0.0050
2.5 to 3.5
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 4.0
0 to 2.0
Zinc (Zn), % 10 to 14
7.0 to 9.0
Residuals, % 0 to 0.7
0 to 0.8