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CC755S Brass vs. C99700 Brass

Both CC755S brass and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 84% 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 CC755S brass and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 9.5
25
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
46
Tensile Strength: Ultimate (UTS), MPa 390
380
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 820
900
Melting Onset (Solidus), °C 780
880
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 30
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 46
53
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
78
Resilience: Unit (Modulus of Resilience), kJ/m3 290
120
Stiffness to Weight: Axial, points 7.1
8.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 14
13
Strength to Weight: Bending, points 15
14
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
0.5 to 3.0
Copper (Cu), % 59.5 to 61
54 to 65.5
Iron (Fe), % 0.050 to 0.2
0 to 1.0
Lead (Pb), % 1.2 to 1.7
0 to 2.0
Manganese (Mn), % 0 to 0.050
11 to 15
Nickel (Ni), % 0 to 0.2
4.0 to 6.0
Silicon (Si), % 0 to 0.050
0
Tin (Sn), % 0 to 0.3
0 to 1.0
Zinc (Zn), % 35.8 to 38.9
19 to 25
Residuals, % 0
0 to 0.3