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CC766S Brass vs. CC753S Brass

Both CC766S brass and CC753S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is CC766S brass and the bottom bar is CC753S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
100
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 28
17
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 500
340
Tensile Strength: Yield (Proof), MPa 190
170

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 840
820
Melting Onset (Solidus), °C 800
780
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 89
99
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
26
Electrical Conductivity: Equal Weight (Specific), % IACS 36
29

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 48
47
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
47
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 17
12
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 28
32
Thermal Shock Resistance, points 17
11

Alloy Composition

Aluminum (Al), % 0.3 to 1.8
0.4 to 0.8
Antimony (Sb), % 0 to 0.1
0 to 0.050
Copper (Cu), % 58 to 64
56.8 to 60.5
Iron (Fe), % 0 to 0.5
0.5 to 0.8
Lead (Pb), % 0 to 0.5
1.8 to 2.5
Manganese (Mn), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 2.0
0.5 to 1.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.6
0 to 0.050
Tin (Sn), % 0 to 0.5
0 to 0.8
Zinc (Zn), % 29.5 to 41.7
33.1 to 40