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C32000 Brass vs. C87700 Bronze

Both C32000 brass and C87700 bronze are copper alloys. They have a moderately high 93% 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 C32000 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, % 6.8 to 29
3.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 270 to 470
300
Tensile Strength: Yield (Proof), MPa 78 to 390
120

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1020
980
Melting Onset (Solidus), °C 990
900
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 160
120
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
45
Electrical Conductivity: Equal Weight (Specific), % IACS 37
48

Otherwise Unclassified Properties

Base Metal Price, % relative 28
29
Density, g/cm3 8.7
8.5
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 59
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 680
64
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 8.8 to 15
9.8
Strength to Weight: Bending, points 11 to 16
12
Thermal Diffusivity, mm2/s 47
34
Thermal Shock Resistance, points 9.5 to 16
11

Alloy Composition


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Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 83.5 to 86.5
87.5 to 90.5
Iron (Fe), % 0 to 0.1
0 to 0.5
Lead (Pb), % 1.5 to 2.2
0 to 0.090
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0 to 0.25
0 to 0.25
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0
2.5 to 3.5
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 10.6 to 15
7.0 to 9.0
Residuals, % 0 to 0.4
0 to 0.8