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C87200 Bronze vs. CC750S Brass

Both C87200 bronze and CC750S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is C87200 bronze and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
54
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 30
13
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 380
200
Tensile Strength: Yield (Proof), MPa 170
80

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 970
860
Melting Onset (Solidus), °C 860
810
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 28
110
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
24
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
26

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 8.6
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 44
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
22
Resilience: Unit (Modulus of Resilience), kJ/m3 130
30
Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12
6.8
Strength to Weight: Bending, points 14
9.3
Thermal Diffusivity, mm2/s 8.0
35
Thermal Shock Resistance, points 14
6.7

Alloy Composition

Aluminum (Al), % 0 to 1.5
0 to 0.1
Copper (Cu), % 89 to 99
62 to 67
Iron (Fe), % 0 to 2.5
0 to 0.8
Lead (Pb), % 0 to 0.5
1.0 to 3.0
Manganese (Mn), % 0 to 1.5
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.5
0 to 0.050
Silicon (Si), % 1.0 to 5.0
0 to 0.050
Tin (Sn), % 0 to 1.0
0 to 1.5
Zinc (Zn), % 0 to 5.0
26.3 to 36