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C85500 Brass vs. C68700 Brass

Both C85500 brass and C68700 brass are copper alloys. They have 81% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C85500 brass and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 410
390
Tensile Strength: Yield (Proof), MPa 160
140

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 900
970
Melting Onset (Solidus), °C 890
930
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
23
Electrical Conductivity: Equal Weight (Specific), % IACS 29
25

Otherwise Unclassified Properties

Base Metal Price, % relative 23
26
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 120
90
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 14
13
Strength to Weight: Bending, points 15
14
Thermal Diffusivity, mm2/s 38
30
Thermal Shock Resistance, points 14
13

Alloy Composition


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Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 59 to 63
76 to 79
Iron (Fe), % 0 to 0.2
0 to 0.060
Lead (Pb), % 0 to 0.2
0 to 0.070
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 0.2
0
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 35.1 to 41
17.8 to 22.2
Residuals, % 0 to 0.9
0 to 0.5