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CC760S Brass vs. CC761S Brass

Both CC760S brass and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is CC760S brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
150
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 22
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 180
540
Tensile Strength: Yield (Proof), MPa 80
340

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1000
960
Melting Onset (Solidus), °C 940
910
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 150
27
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
40
Electrical Conductivity: Equal Weight (Specific), % IACS 40
43

Otherwise Unclassified Properties

Base Metal Price, % relative 28
27
Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 43
45
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
41
Resilience: Unit (Modulus of Resilience), kJ/m3 29
530
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 5.8
18
Strength to Weight: Bending, points 8.2
18
Thermal Diffusivity, mm2/s 45
8.0
Thermal Shock Resistance, points 6.2
19

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0.050 to 0.15
0
Copper (Cu), % 83 to 88
78 to 83
Iron (Fe), % 0 to 0.15
0 to 0.6
Lead (Pb), % 0 to 0.5
0 to 0.8
Manganese (Mn), % 0 to 0.1
0 to 0.2
Nickel (Ni), % 0 to 0.1
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.020
3.0 to 5.0
Tin (Sn), % 0 to 0.3
0 to 0.3
Zinc (Zn), % 10.7 to 17
8.9 to 19