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C84000 Brass vs. C87700 Bronze

Both C84000 brass and C87700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 95% 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 C84000 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, % 27
3.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 250
300
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1040
980
Melting Onset (Solidus), °C 940
900
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 72
120
Thermal Expansion, µm/m-K 18
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 30
29
Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 49
45
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 83
64
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.2
9.8
Strength to Weight: Bending, points 10
12
Thermal Diffusivity, mm2/s 22
34
Thermal Shock Resistance, points 9.0
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0 to 0.1
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
87.5 to 90.5
Iron (Fe), % 0 to 0.4
0 to 0.5
Lead (Pb), % 0 to 0.090
0 to 0.090
Manganese (Mn), % 0 to 0.010
0 to 0.8
Nickel (Ni), % 0.5 to 2.0
0 to 0.25
Phosphorus (P), % 0 to 0.050
0 to 0.15
Silicon (Si), % 0 to 0.0050
2.5 to 3.5
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0 to 2.0
Zinc (Zn), % 5.0 to 14
7.0 to 9.0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0 to 0.8