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C87200 Bronze vs. CC762S Brass

Both C87200 bronze and CC762S 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 CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
210
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 30
7.3
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 380
840
Tensile Strength: Yield (Proof), MPa 170
540

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 970
920
Melting Onset (Solidus), °C 860
870
Specific Heat Capacity, J/kg-K 410
420
Thermal Conductivity, W/m-K 28
51
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
32

Otherwise Unclassified Properties

Base Metal Price, % relative 29
24
Density, g/cm3 8.6
8.0
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 44
51
Embodied Water, L/kg 310
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
54
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1290
Stiffness to Weight: Axial, points 7.4
7.8
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 12
29
Strength to Weight: Bending, points 14
25
Thermal Diffusivity, mm2/s 8.0
15
Thermal Shock Resistance, points 14
27

Alloy Composition

Aluminum (Al), % 0 to 1.5
3.0 to 7.0
Antimony (Sb), % 0
0 to 0.030
Copper (Cu), % 89 to 99
57 to 67
Iron (Fe), % 0 to 2.5
1.5 to 4.0
Lead (Pb), % 0 to 0.5
0 to 0.2
Manganese (Mn), % 0 to 1.5
2.5 to 5.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0 to 0.5
0 to 0.030
Silicon (Si), % 1.0 to 5.0
0 to 0.1
Tin (Sn), % 0 to 1.0
0 to 0.2
Zinc (Zn), % 0 to 5.0
13.4 to 36