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CC497K Bronze vs. CC331G Bronze

Both CC497K bronze and CC331G 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 CC497K bronze and the bottom bar is CC331G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
140
Elastic (Young's, Tensile) Modulus, GPa 93
110
Elongation at Break, % 6.7
20
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 34
43
Tensile Strength: Ultimate (UTS), MPa 190
620
Tensile Strength: Yield (Proof), MPa 91
240

Thermal Properties

Latent Heat of Fusion, J/g 160
230
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 870
1060
Melting Onset (Solidus), °C 800
1000
Specific Heat Capacity, J/kg-K 330
440
Thermal Conductivity, W/m-K 53
61
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
14

Otherwise Unclassified Properties

Base Metal Price, % relative 29
28
Density, g/cm3 9.3
8.3
Embodied Carbon, kg CO2/kg material 3.0
3.2
Embodied Energy, MJ/kg 48
53
Embodied Water, L/kg 370
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
97
Resilience: Unit (Modulus of Resilience), kJ/m3 45
250
Stiffness to Weight: Axial, points 5.5
7.6
Stiffness to Weight: Bending, points 16
19
Strength to Weight: Axial, points 5.6
21
Strength to Weight: Bending, points 7.8
19
Thermal Diffusivity, mm2/s 17
17
Thermal Shock Resistance, points 7.2
22

Alloy Composition

Aluminum (Al), % 0 to 0.010
8.5 to 10.5
Antimony (Sb), % 0 to 0.75
0
Copper (Cu), % 67.5 to 77.5
83 to 86.5
Iron (Fe), % 0 to 0.25
1.5 to 3.5
Lead (Pb), % 18 to 23
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.2
0 to 1.0
Nickel (Ni), % 0.5 to 2.5
0 to 1.5
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 0.2
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0 to 0.2
Zinc (Zn), % 0 to 2.0
0 to 0.5