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CC767S Brass vs. C84000 Brass

Both CC767S brass and C84000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is CC767S brass and the bottom bar is C84000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
65
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 34
27
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 430
250
Tensile Strength: Yield (Proof), MPa 150
140

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 840
1040
Melting Onset (Solidus), °C 790
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 110
72
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
16
Electrical Conductivity: Equal Weight (Specific), % IACS 36
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 8.0
8.6
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 47
49
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
58
Resilience: Unit (Modulus of Resilience), kJ/m3 100
83
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15
8.2
Strength to Weight: Bending, points 16
10
Thermal Diffusivity, mm2/s 34
22
Thermal Shock Resistance, points 14
9.0

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0 to 0.0050
Antimony (Sb), % 0
0 to 0.020
Boron (B), % 0
0 to 0.1
Copper (Cu), % 58 to 64
82 to 89
Iron (Fe), % 0 to 0.5
0 to 0.4
Lead (Pb), % 0 to 0.1
0 to 0.090
Manganese (Mn), % 0 to 0.5
0 to 0.010
Nickel (Ni), % 0 to 1.0
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0 to 0.1
2.0 to 4.0
Zinc (Zn), % 32.8 to 41.9
5.0 to 14
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.7