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C87500 Brass vs. C68400 Brass

Both C87500 brass and C68400 brass are copper alloys. They have 78% 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 C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
18
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 460
540
Tensile Strength: Yield (Proof), MPa 190
310

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 920
840
Melting Onset (Solidus), °C 820
820
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 28
66
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
87
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
99

Otherwise Unclassified Properties

Base Metal Price, % relative 27
23
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
47
Embodied Water, L/kg 300
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
81
Resilience: Unit (Modulus of Resilience), kJ/m3 160
460
Stiffness to Weight: Axial, points 7.4
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 8.3
21
Thermal Shock Resistance, points 17
18

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 79 to 85
59 to 64
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0 to 0.5
0 to 0.090
Manganese (Mn), % 0
0.2 to 1.5
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 3.0 to 5.0
1.5 to 2.5
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 12 to 16
28.6 to 39.3
Residuals, % 0
0 to 0.5