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CC760S Brass vs. CC497K Bronze

Both CC760S brass and CC497K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 74% of their average alloy composition in common.

For each property being compared, the top bar is CC760S brass and the bottom bar is CC497K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
55
Elastic (Young's, Tensile) Modulus, GPa 110
93
Elongation at Break, % 22
6.7
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 42
34
Tensile Strength: Ultimate (UTS), MPa 180
190
Tensile Strength: Yield (Proof), MPa 80
91

Thermal Properties

Latent Heat of Fusion, J/g 190
160
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 1000
870
Melting Onset (Solidus), °C 940
800
Specific Heat Capacity, J/kg-K 390
330
Thermal Conductivity, W/m-K 150
53
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 40
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 28
29
Density, g/cm3 8.6
9.3
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 43
48
Embodied Water, L/kg 320
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
10
Resilience: Unit (Modulus of Resilience), kJ/m3 29
45
Stiffness to Weight: Axial, points 7.2
5.5
Stiffness to Weight: Bending, points 19
16
Strength to Weight: Axial, points 5.8
5.6
Strength to Weight: Bending, points 8.2
7.8
Thermal Diffusivity, mm2/s 45
17
Thermal Shock Resistance, points 6.2
7.2

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0
0 to 0.75
Arsenic (As), % 0.050 to 0.15
0
Copper (Cu), % 83 to 88
67.5 to 77.5
Iron (Fe), % 0 to 0.15
0 to 0.25
Lead (Pb), % 0 to 0.5
18 to 23
Manganese (Mn), % 0 to 0.1
0 to 0.2
Nickel (Ni), % 0 to 0.1
0.5 to 2.5
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
4.0 to 6.0
Zinc (Zn), % 10.7 to 17
0 to 2.0