CC499K Bronze vs. CC381H Copper-nickel
Both CC499K bronze and CC381H copper-nickel are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common.
For each property being compared, the top bar is CC499K bronze and the bottom bar is CC381H copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 73 | |
91 |
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
140 |
Elongation at Break, % | 13 | |
20 |
Poisson's Ratio | 0.34 | |
0.33 |
Shear Modulus, GPa | 41 | |
52 |
Tensile Strength: Ultimate (UTS), MPa | 260 | |
380 |
Tensile Strength: Yield (Proof), MPa | 120 | |
140 |
Thermal Properties
Latent Heat of Fusion, J/g | 190 | |
240 |
Maximum Temperature: Mechanical, °C | 170 | |
260 |
Melting Completion (Liquidus), °C | 1000 | |
1180 |
Melting Onset (Solidus), °C | 920 | |
1120 |
Specific Heat Capacity, J/kg-K | 370 | |
410 |
Thermal Conductivity, W/m-K | 73 | |
30 |
Thermal Expansion, µm/m-K | 18 | |
16 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 12 | |
6.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
6.9 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 32 | |
40 |
Density, g/cm3 | 8.8 | |
8.9 |
Embodied Carbon, kg CO2/kg material | 3.1 | |
5.0 |
Embodied Energy, MJ/kg | 51 | |
73 |
Embodied Water, L/kg | 350 | |
280 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 27 | |
60 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 65 | |
68 |
Stiffness to Weight: Axial, points | 6.9 | |
8.6 |
Stiffness to Weight: Bending, points | 18 | |
19 |
Strength to Weight: Axial, points | 8.1 | |
12 |
Strength to Weight: Bending, points | 10 | |
13 |
Thermal Diffusivity, mm2/s | 22 | |
8.4 |
Thermal Shock Resistance, points | 9.2 | |
13 |
Alloy Composition
Aluminum (Al), % | 0 to 0.010 | |
0 to 0.010 |
Antimony (Sb), % | 0 to 0.1 | |
0 |
Arsenic (As), % | 0 to 0.030 | |
0 |
Bismuth (Bi), % | 0 to 0.020 | |
0 |
Cadmium (Cd), % | 0 to 0.020 | |
0 |
Carbon (C), % | 0 | |
0 to 0.030 |
Chromium (Cr), % | 0 to 0.020 | |
0 |
Copper (Cu), % | 84 to 88 | |
64.5 to 69.9 |
Iron (Fe), % | 0 to 0.3 | |
0.5 to 1.5 |
Lead (Pb), % | 0 to 3.0 | |
0 to 0.030 |
Manganese (Mn), % | 0 | |
0.6 to 1.2 |
Nickel (Ni), % | 0 to 0.6 | |
29 to 31 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.010 |
Silicon (Si), % | 0 to 0.010 | |
0 to 0.1 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.010 |
Tin (Sn), % | 4.0 to 6.0 | |
0 |
Zinc (Zn), % | 4.0 to 6.0 | |
0 to 0.5 |