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CC767S Brass vs. C99700 Brass

Both CC767S brass and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is CC767S brass and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 34
25
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
46
Tensile Strength: Ultimate (UTS), MPa 430
380
Tensile Strength: Yield (Proof), MPa 150
170

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 840
900
Melting Onset (Solidus), °C 790
880
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 36
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 47
53
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
78
Resilience: Unit (Modulus of Resilience), kJ/m3 100
120
Stiffness to Weight: Axial, points 7.3
8.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 15
13
Strength to Weight: Bending, points 16
14
Thermal Shock Resistance, points 14
11

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0.5 to 3.0
Copper (Cu), % 58 to 64
54 to 65.5
Iron (Fe), % 0 to 0.5
0 to 1.0
Lead (Pb), % 0 to 0.1
0 to 2.0
Manganese (Mn), % 0 to 0.5
11 to 15
Nickel (Ni), % 0 to 1.0
4.0 to 6.0
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0 to 0.1
0 to 1.0
Zinc (Zn), % 32.8 to 41.9
19 to 25
Residuals, % 0
0 to 0.3