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CC755S Brass vs. C81500 Copper

Both CC755S brass and C81500 copper are copper alloys. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is CC755S brass and the bottom bar is C81500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
110
Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 9.5
17
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 390
350
Tensile Strength: Yield (Proof), MPa 250
280

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 820
1090
Melting Onset (Solidus), °C 780
1080
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
320
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
82
Electrical Conductivity: Equal Weight (Specific), % IACS 30
83

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
56
Resilience: Unit (Modulus of Resilience), kJ/m3 290
330
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 14
11
Strength to Weight: Bending, points 15
12
Thermal Diffusivity, mm2/s 38
91
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
0 to 0.1
Chromium (Cr), % 0
0.4 to 1.5
Copper (Cu), % 59.5 to 61
97.4 to 99.6
Iron (Fe), % 0.050 to 0.2
0 to 0.1
Lead (Pb), % 1.2 to 1.7
0 to 0.020
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0 to 0.050
0 to 0.15
Tin (Sn), % 0 to 0.3
0 to 0.1
Zinc (Zn), % 35.8 to 38.9
0 to 0.1
Residuals, % 0
0 to 0.5