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CC767S Brass vs. CC762S Brass

Both CC767S brass and CC762S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is CC767S brass and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
210
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 34
7.3
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 430
840
Tensile Strength: Yield (Proof), MPa 150
540

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 840
920
Melting Onset (Solidus), °C 790
870
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 110
51
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
28
Electrical Conductivity: Equal Weight (Specific), % IACS 36
32

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 47
51
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
54
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1290
Stiffness to Weight: Axial, points 7.3
7.8
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 15
29
Strength to Weight: Bending, points 16
25
Thermal Diffusivity, mm2/s 34
15
Thermal Shock Resistance, points 14
27

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
3.0 to 7.0
Antimony (Sb), % 0
0 to 0.030
Copper (Cu), % 58 to 64
57 to 67
Iron (Fe), % 0 to 0.5
1.5 to 4.0
Lead (Pb), % 0 to 0.1
0 to 0.2
Manganese (Mn), % 0 to 0.5
2.5 to 5.0
Nickel (Ni), % 0 to 1.0
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.1
Tin (Sn), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 32.8 to 41.9
13.4 to 36