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C87500 Brass vs. C85500 Brass

Both C87500 brass and C85500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common. There are 28 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 C87500 brass and the bottom bar is C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 18
40
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 460
410
Tensile Strength: Yield (Proof), MPa 190
160

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 920
900
Melting Onset (Solidus), °C 820
890
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 28
120
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
26
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
29

Otherwise Unclassified Properties

Base Metal Price, % relative 27
23
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
46
Embodied Water, L/kg 300
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
120
Stiffness to Weight: Axial, points 7.4
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16
14
Strength to Weight: Bending, points 16
15
Thermal Diffusivity, mm2/s 8.3
38
Thermal Shock Resistance, points 17
14

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 79 to 85
59 to 63
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0 to 0.5
0 to 0.2
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 0.2
Silicon (Si), % 3.0 to 5.0
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 12 to 16
35.1 to 41
Residuals, % 0
0 to 0.9