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CC761S Brass vs. CC762S Brass

Both CC761S brass and CC762S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is CC761S brass and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
210
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.7
7.3
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 540
840
Tensile Strength: Yield (Proof), MPa 340
540

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 960
920
Melting Onset (Solidus), °C 910
870
Specific Heat Capacity, J/kg-K 410
420
Thermal Conductivity, W/m-K 27
51
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
28
Electrical Conductivity: Equal Weight (Specific), % IACS 43
32

Otherwise Unclassified Properties

Base Metal Price, % relative 27
24
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 45
51
Embodied Water, L/kg 300
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
54
Resilience: Unit (Modulus of Resilience), kJ/m3 530
1290
Stiffness to Weight: Axial, points 7.4
7.8
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 8.0
15
Thermal Shock Resistance, points 19
27

Alloy Composition

Aluminum (Al), % 0 to 0.1
3.0 to 7.0
Antimony (Sb), % 0 to 0.050
0 to 0.030
Copper (Cu), % 78 to 83
57 to 67
Iron (Fe), % 0 to 0.6
1.5 to 4.0
Lead (Pb), % 0 to 0.8
0 to 0.2
Manganese (Mn), % 0 to 0.2
2.5 to 5.0
Nickel (Ni), % 0 to 1.0
0 to 3.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 3.0 to 5.0
0 to 0.1
Tin (Sn), % 0 to 0.3
0 to 0.2
Zinc (Zn), % 8.9 to 19
13.4 to 36