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C66900 Brass vs. C87700 Bronze

Both C66900 brass and C87700 bronze are copper alloys. They have 72% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C66900 brass and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.1 to 26
3.6
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
42
Tensile Strength: Ultimate (UTS), MPa 460 to 770
300
Tensile Strength: Yield (Proof), MPa 330 to 760
120

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 150
180
Melting Completion (Liquidus), °C 860
980
Melting Onset (Solidus), °C 850
900
Specific Heat Capacity, J/kg-K 400
400
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
45
Electrical Conductivity: Equal Weight (Specific), % IACS 3.8
48

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.2
8.5
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
64
Stiffness to Weight: Axial, points 8.1
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 26
9.8
Strength to Weight: Bending, points 16 to 23
12
Thermal Shock Resistance, points 14 to 23
11

Alloy Composition

Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 62.5 to 64.5
87.5 to 90.5
Iron (Fe), % 0 to 0.25
0 to 0.5
Lead (Pb), % 0 to 0.050
0 to 0.090
Manganese (Mn), % 11.5 to 12.5
0 to 0.8
Nickel (Ni), % 0
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), % 22.5 to 26
7.0 to 9.0
Residuals, % 0
0 to 0.8