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C84000 Brass vs. CC761S Brass

Both C84000 brass and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is C84000 brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
150
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 27
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 250
540
Tensile Strength: Yield (Proof), MPa 140
340

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1040
960
Melting Onset (Solidus), °C 940
910
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 72
27
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
40
Electrical Conductivity: Equal Weight (Specific), % IACS 17
43

Otherwise Unclassified Properties

Base Metal Price, % relative 30
27
Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 49
45
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
41
Resilience: Unit (Modulus of Resilience), kJ/m3 83
530
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.2
18
Strength to Weight: Bending, points 10
18
Thermal Diffusivity, mm2/s 22
8.0
Thermal Shock Resistance, points 9.0
19

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.1
Antimony (Sb), % 0 to 0.020
0 to 0.050
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
78 to 83
Iron (Fe), % 0 to 0.4
0 to 0.6
Lead (Pb), % 0 to 0.090
0 to 0.8
Manganese (Mn), % 0 to 0.010
0 to 0.2
Nickel (Ni), % 0.5 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.050
0 to 0.030
Silicon (Si), % 0 to 0.0050
3.0 to 5.0
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0 to 0.3
Zinc (Zn), % 5.0 to 14
8.9 to 19
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0