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CC760S Brass vs. CC496K Bronze

Both CC760S brass and CC496K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is CC760S brass and the bottom bar is CC496K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
72
Elastic (Young's, Tensile) Modulus, GPa 110
97
Elongation at Break, % 22
8.6
Poisson's Ratio 0.33
0.35
Shear Modulus, GPa 42
36
Tensile Strength: Ultimate (UTS), MPa 180
210
Tensile Strength: Yield (Proof), MPa 80
99

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 1000
900
Melting Onset (Solidus), °C 940
820
Specific Heat Capacity, J/kg-K 390
340
Thermal Conductivity, W/m-K 150
52
Thermal Expansion, µm/m-K 19
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
11
Electrical Conductivity: Equal Weight (Specific), % IACS 40
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
31
Density, g/cm3 8.6
9.2
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 43
52
Embodied Water, L/kg 320
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
15
Resilience: Unit (Modulus of Resilience), kJ/m3 29
50
Stiffness to Weight: Axial, points 7.2
5.9
Stiffness to Weight: Bending, points 19
17
Strength to Weight: Axial, points 5.8
6.5
Strength to Weight: Bending, points 8.2
8.6
Thermal Diffusivity, mm2/s 45
17
Thermal Shock Resistance, points 6.2
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0.050 to 0.15
0
Copper (Cu), % 83 to 88
72 to 79.5
Iron (Fe), % 0 to 0.15
0 to 0.25
Lead (Pb), % 0 to 0.5
13 to 17
Manganese (Mn), % 0 to 0.1
0 to 0.2
Nickel (Ni), % 0 to 0.1
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.020
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0 to 0.3
6.0 to 8.0
Zinc (Zn), % 10.7 to 17
0 to 2.0