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CC496K Bronze vs. CC380H Copper-nickel

Both CC496K bronze and CC380H copper-nickel are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is CC496K bronze and the bottom bar is CC380H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 72
80
Elastic (Young's, Tensile) Modulus, GPa 97
120
Elongation at Break, % 8.6
26
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 36
47
Tensile Strength: Ultimate (UTS), MPa 210
310
Tensile Strength: Yield (Proof), MPa 99
120

Thermal Properties

Latent Heat of Fusion, J/g 170
220
Maximum Temperature: Mechanical, °C 140
220
Melting Completion (Liquidus), °C 900
1130
Melting Onset (Solidus), °C 820
1080
Specific Heat Capacity, J/kg-K 340
390
Thermal Conductivity, W/m-K 52
46
Thermal Expansion, µm/m-K 19
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 31
36
Density, g/cm3 9.2
8.9
Embodied Carbon, kg CO2/kg material 3.3
3.8
Embodied Energy, MJ/kg 52
58
Embodied Water, L/kg 380
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
65
Resilience: Unit (Modulus of Resilience), kJ/m3 50
59
Stiffness to Weight: Axial, points 5.9
7.8
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 6.5
9.8
Strength to Weight: Bending, points 8.6
12
Thermal Diffusivity, mm2/s 17
13
Thermal Shock Resistance, points 8.1
11

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 72 to 79.5
84.5 to 89
Iron (Fe), % 0 to 0.25
1.0 to 1.8
Lead (Pb), % 13 to 17
0 to 0.030
Manganese (Mn), % 0 to 0.2
1.0 to 1.5
Nickel (Ni), % 0.5 to 2.0
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 0.1
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 6.0 to 8.0
0
Zinc (Zn), % 0 to 2.0
0 to 0.5