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C99700 Brass vs. C86500 Bronze

Both C99700 brass and C86500 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C99700 brass and the bottom bar is C86500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 25
25
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 46
40
Tensile Strength: Ultimate (UTS), MPa 380
530
Tensile Strength: Yield (Proof), MPa 170
190

Thermal Properties

Latent Heat of Fusion, J/g 200
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 900
880
Melting Onset (Solidus), °C 880
860
Specific Heat Capacity, J/kg-K 410
390
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
22
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
25

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 53
48
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120
180
Stiffness to Weight: Axial, points 8.3
7.4
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
19
Strength to Weight: Bending, points 14
18
Thermal Shock Resistance, points 11
17

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0.5 to 1.5
Copper (Cu), % 54 to 65.5
55 to 60
Iron (Fe), % 0 to 1.0
0.4 to 2.0
Lead (Pb), % 0 to 2.0
0 to 0.4
Manganese (Mn), % 11 to 15
0.1 to 1.5
Nickel (Ni), % 4.0 to 6.0
0 to 1.0
Tin (Sn), % 0 to 1.0
0 to 1.0
Zinc (Zn), % 19 to 25
36 to 42
Residuals, % 0
0 to 1.0