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CC762S Brass vs. CC761S Brass

Both CC762S brass and CC761S 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 CC762S brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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