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CC764S Brass vs. C90200 Bronze

Both CC764S brass and C90200 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is CC764S brass and the bottom bar is C90200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
70
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 15
30
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
41
Tensile Strength: Ultimate (UTS), MPa 680
260
Tensile Strength: Yield (Proof), MPa 290
110

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 850
1050
Melting Onset (Solidus), °C 810
880
Specific Heat Capacity, J/kg-K 400
370
Thermal Conductivity, W/m-K 94
62
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
13
Electrical Conductivity: Equal Weight (Specific), % IACS 36
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
34
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 2.9
3.3
Embodied Energy, MJ/kg 49
53
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
63
Resilience: Unit (Modulus of Resilience), kJ/m3 390
55
Stiffness to Weight: Axial, points 7.6
7.0
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 24
8.3
Strength to Weight: Bending, points 22
10
Thermal Diffusivity, mm2/s 30
19
Thermal Shock Resistance, points 22
9.5

Alloy Composition


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Aluminum (Al), % 1.0 to 3.0
0 to 0.0050
Antimony (Sb), % 0 to 0.050
0 to 0.2
Copper (Cu), % 52 to 66
91 to 94
Iron (Fe), % 0.5 to 2.5
0 to 0.2
Lead (Pb), % 0 to 0.3
0 to 0.3
Manganese (Mn), % 0.3 to 4.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.3
6.0 to 8.0
Zinc (Zn), % 20.7 to 50.2
0 to 0.5
Residuals, % 0
0 to 0.6