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C87900 Brass vs. CC765S Brass

Both C87900 brass and CC765S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C87900 brass and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
21
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 480
540
Tensile Strength: Yield (Proof), MPa 240
220

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
140
Melting Completion (Liquidus), °C 930
860
Melting Onset (Solidus), °C 900
820
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
91
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
30
Electrical Conductivity: Equal Weight (Specific), % IACS 17
34

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
90
Resilience: Unit (Modulus of Resilience), kJ/m3 270
220
Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 37
28
Thermal Shock Resistance, points 16
17

Alloy Composition

Aluminum (Al), % 0 to 0.15
0.5 to 2.5
Antimony (Sb), % 0 to 0.050
0 to 0.080
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
51 to 65
Iron (Fe), % 0 to 0.4
0.5 to 2.0
Lead (Pb), % 0 to 0.25
0 to 0.5
Manganese (Mn), % 0 to 0.15
0.3 to 3.0
Nickel (Ni), % 0 to 0.5
0 to 6.0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0.8 to 1.2
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0 to 1.0
Zinc (Zn), % 30 to 36
19.8 to 47.7