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CC767S Brass vs. C85400 Brass

Both CC767S brass and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is CC767S brass and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
55
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 34
23
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 430
220
Tensile Strength: Yield (Proof), MPa 150
85

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 840
940
Melting Onset (Solidus), °C 790
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 110
89
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
20
Electrical Conductivity: Equal Weight (Specific), % IACS 36
22

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
40
Resilience: Unit (Modulus of Resilience), kJ/m3 100
35
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15
7.5
Strength to Weight: Bending, points 16
9.9
Thermal Diffusivity, mm2/s 34
28
Thermal Shock Resistance, points 14
7.6

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0 to 0.35
Copper (Cu), % 58 to 64
65 to 70
Iron (Fe), % 0 to 0.5
0 to 0.7
Lead (Pb), % 0 to 0.1
1.5 to 3.8
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Silicon (Si), % 0 to 0.2
0 to 0.050
Tin (Sn), % 0 to 0.1
0.5 to 1.5
Zinc (Zn), % 32.8 to 41.9
24 to 32
Residuals, % 0
0 to 1.1