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C87500 Brass vs. C35000 Brass

Both C87500 brass and C35000 brass are copper alloys. They have 76% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C87500 brass and the bottom bar is C35000 brass.

UNS C87500 Silicon BrassUNS C35000 Leaded Brass
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 460
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 920
920
Melting Onset (Solidus), °C 820
890
Specific Heat Capacity, J/kg-K 410
380
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
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 300
320

Common Calculations

Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
12 to 22
Strength to Weight: Bending, points 16
13 to 21
Thermal Diffusivity, mm2/s 8.3
37
Thermal Shock Resistance, points 17
11 to 22

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 79 to 85
60 to 63
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0 to 0.5
0.8 to 2.0
Silicon (Si), % 3.0 to 5.0
0
Zinc (Zn), % 12 to 16
34.5 to 39.2
Residuals, % 0
0 to 0.4