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C99700 Brass vs. CC761S Brass

Both C99700 brass and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% 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 C99700 brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 25
8.7
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 46
42
Tensile Strength: Ultimate (UTS), MPa 380
540
Tensile Strength: Yield (Proof), MPa 170
340

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 900
960
Melting Onset (Solidus), °C 880
910
Specific Heat Capacity, J/kg-K 410
410
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
43

Otherwise Unclassified Properties

Base Metal Price, % relative 25
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 53
45
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
41
Resilience: Unit (Modulus of Resilience), kJ/m3 120
530
Stiffness to Weight: Axial, points 8.3
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 13
18
Strength to Weight: Bending, points 14
18
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 54 to 65.5
78 to 83
Iron (Fe), % 0 to 1.0
0 to 0.6
Lead (Pb), % 0 to 2.0
0 to 0.8
Manganese (Mn), % 11 to 15
0 to 0.2
Nickel (Ni), % 4.0 to 6.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
3.0 to 5.0
Tin (Sn), % 0 to 1.0
0 to 0.3
Zinc (Zn), % 19 to 25
8.9 to 19
Residuals, % 0 to 0.3
0