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C86700 Bronze vs. C97300 Nickel Silver

Both C86700 bronze and C97300 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is C86700 bronze and the bottom bar is C97300 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
9.0
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 630
230
Tensile Strength: Yield (Proof), MPa 250
110

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 880
1040
Melting Onset (Solidus), °C 860
1010
Specific Heat Capacity, J/kg-K 400
370
Thermal Conductivity, W/m-K 89
29
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 19
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 2.9
3.7
Embodied Energy, MJ/kg 49
59
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
18
Resilience: Unit (Modulus of Resilience), kJ/m3 290
59
Stiffness to Weight: Axial, points 7.5
7.0
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 22
7.6
Strength to Weight: Bending, points 21
9.8
Thermal Diffusivity, mm2/s 28
9.3
Thermal Shock Resistance, points 21
8.0

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.35
Copper (Cu), % 55 to 60
53 to 58
Iron (Fe), % 1.0 to 3.0
0 to 1.5
Lead (Pb), % 0.5 to 1.5
8.0 to 11
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
11 to 14
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 1.5
1.5 to 3.0
Zinc (Zn), % 30 to 38
17 to 25
Residuals, % 0
0 to 1.0