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CC761S Brass vs. CC752S Brass

Both CC761S brass and CC752S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is CC761S brass and the bottom bar is CC752S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
100
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 8.7
8.4
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 540
350
Tensile Strength: Yield (Proof), MPa 340
190

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 960
840
Melting Onset (Solidus), °C 910
800
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 27
110
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
25
Electrical Conductivity: Equal Weight (Specific), % IACS 43
28

Otherwise Unclassified Properties

Base Metal Price, % relative 27
24
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
25
Resilience: Unit (Modulus of Resilience), kJ/m3 530
180
Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18
12
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 8.0
35
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.3 to 0.7
Antimony (Sb), % 0 to 0.050
0 to 0.14
Arsenic (As), % 0
0.040 to 0.14
Copper (Cu), % 78 to 83
61.5 to 64.5
Iron (Fe), % 0 to 0.6
0 to 0.3
Lead (Pb), % 0 to 0.8
1.5 to 2.2
Manganese (Mn), % 0 to 0.2
0 to 0.1
Nickel (Ni), % 0 to 1.0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 3.0 to 5.0
0 to 0.020
Tin (Sn), % 0 to 0.3
0 to 0.3
Zinc (Zn), % 8.9 to 19
31.5 to 36.7