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CC765S Brass vs. CC480K Bronze

Both CC765S brass and CC480K 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 CC765S brass and the bottom bar is CC480K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
88
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 21
13
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 540
300
Tensile Strength: Yield (Proof), MPa 220
180

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 140
170
Melting Completion (Liquidus), °C 860
1010
Melting Onset (Solidus), °C 820
900
Specific Heat Capacity, J/kg-K 400
370
Thermal Conductivity, W/m-K 91
63
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
11
Electrical Conductivity: Equal Weight (Specific), % IACS 34
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
35
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 3.0
3.7
Embodied Energy, MJ/kg 51
59
Embodied Water, L/kg 330
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
35
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140
Stiffness to Weight: Axial, points 7.6
6.9
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 19
9.6
Strength to Weight: Bending, points 18
11
Thermal Diffusivity, mm2/s 28
20
Thermal Shock Resistance, points 17
11

Alloy Composition

Aluminum (Al), % 0.5 to 2.5
0 to 0.010
Antimony (Sb), % 0 to 0.080
0 to 0.2
Copper (Cu), % 51 to 65
86 to 90
Iron (Fe), % 0.5 to 2.0
0 to 0.2
Lead (Pb), % 0 to 0.5
0 to 1.0
Manganese (Mn), % 0.3 to 3.0
0 to 0.1
Nickel (Ni), % 0 to 6.0
0 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.2
Silicon (Si), % 0 to 0.1
0 to 0.020
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 1.0
9.0 to 11
Zinc (Zn), % 19.8 to 47.7
0 to 0.5