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C87900 Brass vs. CC764S Brass

Both C87900 brass and CC764S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% 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 CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
15
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
41
Tensile Strength: Ultimate (UTS), MPa 480
680
Tensile Strength: Yield (Proof), MPa 240
290

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 930
850
Melting Onset (Solidus), °C 900
810
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
94
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
32
Electrical Conductivity: Equal Weight (Specific), % IACS 17
36

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
80
Resilience: Unit (Modulus of Resilience), kJ/m3 270
390
Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 37
30
Thermal Shock Resistance, points 16
22

Alloy Composition

Aluminum (Al), % 0 to 0.15
1.0 to 3.0
Antimony (Sb), % 0 to 0.050
0 to 0.050
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
52 to 66
Iron (Fe), % 0 to 0.4
0.5 to 2.5
Lead (Pb), % 0 to 0.25
0 to 0.3
Manganese (Mn), % 0 to 0.15
0.3 to 4.0
Nickel (Ni), % 0 to 0.5
0 to 3.0
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 0.3
Zinc (Zn), % 30 to 36
20.7 to 50.2