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C66700 Brass vs. C87500 Brass

Both C66700 brass and C87500 brass are copper alloys. They have 84% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C66700 brass and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 2.0 to 58
18
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 340 to 690
460
Tensile Strength: Yield (Proof), MPa 100 to 640
190

Thermal Properties

Latent Heat of Fusion, J/g 180
260
Maximum Temperature: Mechanical, °C 140
170
Melting Completion (Liquidus), °C 1090
920
Melting Onset (Solidus), °C 1050
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 97
28
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 19
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
27
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 150
67
Resilience: Unit (Modulus of Resilience), kJ/m3 49 to 1900
160
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 23
16
Strength to Weight: Bending, points 13 to 21
16
Thermal Diffusivity, mm2/s 30
8.3
Thermal Shock Resistance, points 11 to 23
17

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 68.5 to 71.5
79 to 85
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.070
0 to 0.5
Manganese (Mn), % 0.8 to 1.5
0
Silicon (Si), % 0
3.0 to 5.0
Zinc (Zn), % 26.3 to 30.7
12 to 16
Residuals, % 0 to 0.5
0 to 0.5