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CC755S Brass vs. C87400 Brass

Both CC755S brass and C87400 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 (1, in this case) are not shown.

For each property being compared, the top bar is CC755S brass and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 9.5
21
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 390
390
Tensile Strength: Yield (Proof), MPa 250
160

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 820
920
Melting Onset (Solidus), °C 780
820
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 30
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 23
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
44
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
65
Resilience: Unit (Modulus of Resilience), kJ/m3 290
120
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 14
13
Strength to Weight: Bending, points 15
14
Thermal Diffusivity, mm2/s 38
8.3
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
0 to 0.8
Copper (Cu), % 59.5 to 61
79 to 85.5
Iron (Fe), % 0.050 to 0.2
0
Lead (Pb), % 1.2 to 1.7
0 to 1.0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0 to 0.050
2.5 to 4.0
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.8 to 38.9
12 to 16
Residuals, % 0
0 to 0.8