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CC765S Brass vs. C99300 Copper

Both CC765S brass and C99300 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is CC765S brass and the bottom bar is C99300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
200
Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 21
2.0
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 42
46
Tensile Strength: Ultimate (UTS), MPa 540
660
Tensile Strength: Yield (Proof), MPa 220
380

Thermal Properties

Latent Heat of Fusion, J/g 180
240
Maximum Temperature: Mechanical, °C 140
250
Melting Completion (Liquidus), °C 860
1080
Melting Onset (Solidus), °C 820
1070
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 91
43
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 34
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 24
35
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 3.0
4.5
Embodied Energy, MJ/kg 51
70
Embodied Water, L/kg 330
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
11
Resilience: Unit (Modulus of Resilience), kJ/m3 220
590
Stiffness to Weight: Axial, points 7.6
8.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 28
12
Thermal Shock Resistance, points 17
22

Alloy Composition


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Aluminum (Al), % 0.5 to 2.5
10.7 to 11.5
Antimony (Sb), % 0 to 0.080
0
Cobalt (Co), % 0
1.0 to 2.0
Copper (Cu), % 51 to 65
68.6 to 74.4
Iron (Fe), % 0.5 to 2.0
0.4 to 1.0
Lead (Pb), % 0 to 0.5
0 to 0.020
Manganese (Mn), % 0.3 to 3.0
0
Nickel (Ni), % 0 to 6.0
13.5 to 16.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0 to 0.020
Tin (Sn), % 0 to 1.0
0 to 0.050
Zinc (Zn), % 19.8 to 47.7
0
Residuals, % 0
0 to 0.3