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C94400 Bronze vs. CC380H Copper-nickel

Both C94400 bronze and CC380H copper-nickel are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is C94400 bronze and the bottom bar is CC380H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
80
Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 18
26
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 37
47
Tensile Strength: Ultimate (UTS), MPa 220
310
Tensile Strength: Yield (Proof), MPa 110
120

Thermal Properties

Latent Heat of Fusion, J/g 180
220
Maximum Temperature: Mechanical, °C 150
220
Melting Completion (Liquidus), °C 940
1130
Melting Onset (Solidus), °C 790
1080
Specific Heat Capacity, J/kg-K 350
390
Thermal Conductivity, W/m-K 52
46
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
11
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
36
Density, g/cm3 9.1
8.9
Embodied Carbon, kg CO2/kg material 3.4
3.8
Embodied Energy, MJ/kg 54
58
Embodied Water, L/kg 390
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
65
Resilience: Unit (Modulus of Resilience), kJ/m3 60
59
Stiffness to Weight: Axial, points 6.1
7.8
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 6.8
9.8
Strength to Weight: Bending, points 9.0
12
Thermal Diffusivity, mm2/s 17
13
Thermal Shock Resistance, points 8.3
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.010
Antimony (Sb), % 0 to 0.8
0
Copper (Cu), % 76.1 to 84
84.5 to 89
Iron (Fe), % 0 to 0.15
1.0 to 1.8
Lead (Pb), % 9.0 to 12
0 to 0.030
Manganese (Mn), % 0
1.0 to 1.5
Nickel (Ni), % 0 to 1.0
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 7.0 to 9.0
0
Zinc (Zn), % 0 to 0.8
0 to 0.5