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C84500 Brass vs. CC761S Brass

Both C84500 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 C84500 brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
150
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 28
8.7
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 39
42
Tensile Strength: Ultimate (UTS), MPa 240
540
Tensile Strength: Yield (Proof), MPa 97
340

Thermal Properties

Latent Heat of Fusion, J/g 180
260
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 980
960
Melting Onset (Solidus), °C 840
910
Specific Heat Capacity, J/kg-K 360
410
Thermal Conductivity, W/m-K 72
27
Thermal Expansion, µm/m-K 19
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 28
27
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 340
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
41
Resilience: Unit (Modulus of Resilience), kJ/m3 45
530
Stiffness to Weight: Axial, points 6.6
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.7
18
Strength to Weight: Bending, points 9.8
18
Thermal Diffusivity, mm2/s 23
8.0
Thermal Shock Resistance, points 8.6
19

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.1
Antimony (Sb), % 0 to 0.25
0 to 0.050
Copper (Cu), % 77 to 79
78 to 83
Iron (Fe), % 0 to 0.4
0 to 0.6
Lead (Pb), % 6.0 to 7.5
0 to 0.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.0050
3.0 to 5.0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 4.0
0 to 0.3
Zinc (Zn), % 10 to 14
8.9 to 19
Residuals, % 0 to 0.7
0