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C51900 Bronze vs. C70700 Copper-nickel

Both C51900 bronze and C70700 copper-nickel are copper alloys. They have 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C51900 bronze and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 14 to 29
39
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 42
46
Shear Strength, MPa 320 to 370
220
Tensile Strength: Ultimate (UTS), MPa 380 to 620
320
Tensile Strength: Yield (Proof), MPa 390 to 570
110

Thermal Properties

Latent Heat of Fusion, J/g 200
220
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 1040
1120
Melting Onset (Solidus), °C 930
1060
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 66
59
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
11
Electrical Conductivity: Equal Weight (Specific), % IACS 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 33
34
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 3.2
3.4
Embodied Energy, MJ/kg 51
52
Embodied Water, L/kg 360
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55 to 180
100
Resilience: Unit (Modulus of Resilience), kJ/m3 680 to 1450
51
Stiffness to Weight: Axial, points 7.0
7.6
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 12 to 19
10
Strength to Weight: Bending, points 13 to 18
12
Thermal Diffusivity, mm2/s 20
17
Thermal Shock Resistance, points 14 to 22
12

Alloy Composition

Copper (Cu), % 91.7 to 95
88.5 to 90.5
Iron (Fe), % 0 to 0.1
0 to 0.050
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
9.5 to 10.5
Phosphorus (P), % 0.030 to 0.35
0
Tin (Sn), % 5.0 to 7.0
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.5