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CC765S Brass vs. C85900 Brass

Both CC765S brass and C85900 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is CC765S brass and the bottom bar is C85900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
85
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 21
30
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 540
460
Tensile Strength: Yield (Proof), MPa 220
190

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 140
130
Melting Completion (Liquidus), °C 860
830
Melting Onset (Solidus), °C 820
790
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 91
89
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
25
Electrical Conductivity: Equal Weight (Specific), % IACS 34
28

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 51
49
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170
Stiffness to Weight: Axial, points 7.6
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
16
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 28
29
Thermal Shock Resistance, points 17
16

Alloy Composition


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Aluminum (Al), % 0.5 to 2.5
0.1 to 0.6
Antimony (Sb), % 0 to 0.080
0 to 0.2
Boron (B), % 0
0 to 0.2
Copper (Cu), % 51 to 65
58 to 62
Iron (Fe), % 0.5 to 2.0
0 to 0.5
Lead (Pb), % 0 to 0.5
0 to 0.090
Manganese (Mn), % 0.3 to 3.0
0 to 0.010
Nickel (Ni), % 0 to 6.0
0 to 1.5
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.1
0 to 0.25
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0 to 1.0
0 to 1.5
Zinc (Zn), % 19.8 to 47.7
31 to 41
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.7