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C69710 Brass vs. C87500 Brass

Both C69710 brass and C87500 brass are copper alloys. 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 C69710 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, % 25
18
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 470
460
Tensile Strength: Yield (Proof), MPa 230
190

Thermal Properties

Latent Heat of Fusion, J/g 240
260
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 930
920
Melting Onset (Solidus), °C 880
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 40
28
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 26
27
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
44
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
67
Resilience: Unit (Modulus of Resilience), kJ/m3 250
160
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
16
Strength to Weight: Bending, points 16
16
Thermal Diffusivity, mm2/s 12
8.3
Thermal Shock Resistance, points 16
17

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
79 to 85
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0.5 to 1.5
0 to 0.5
Manganese (Mn), % 0 to 0.4
0
Silicon (Si), % 2.5 to 3.5
3.0 to 5.0
Zinc (Zn), % 13.8 to 22
12 to 16
Residuals, % 0 to 0.5
0 to 0.5