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C94300 Bronze vs. C97300 Nickel Silver

Both C94300 bronze and C97300 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is C94300 bronze and the bottom bar is C97300 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
110
Elongation at Break, % 9.7
9.0
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 32
40
Tensile Strength: Ultimate (UTS), MPa 180
230
Tensile Strength: Yield (Proof), MPa 120
110

Thermal Properties

Latent Heat of Fusion, J/g 150
180
Maximum Temperature: Mechanical, °C 110
150
Melting Completion (Liquidus), °C 820
1040
Melting Onset (Solidus), °C 760
1010
Specific Heat Capacity, J/kg-K 320
370
Thermal Conductivity, W/m-K 63
29
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
30
Density, g/cm3 9.3
8.6
Embodied Carbon, kg CO2/kg material 2.9
3.7
Embodied Energy, MJ/kg 47
59
Embodied Water, L/kg 370
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
18
Resilience: Unit (Modulus of Resilience), kJ/m3 77
59
Stiffness to Weight: Axial, points 5.2
7.0
Stiffness to Weight: Bending, points 16
18
Strength to Weight: Axial, points 5.2
7.6
Strength to Weight: Bending, points 7.4
9.8
Thermal Diffusivity, mm2/s 21
9.3
Thermal Shock Resistance, points 7.1
8.0

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.8
0 to 0.35
Copper (Cu), % 67 to 72
53 to 58
Iron (Fe), % 0 to 0.15
0 to 1.5
Lead (Pb), % 23 to 27
8.0 to 11
Nickel (Ni), % 0 to 1.0
11 to 14
Phosphorus (P), % 0 to 1.5
0 to 0.050
Silicon (Si), % 0 to 0.0050
0 to 0.15
Sulfur (S), % 0 to 0.080
0 to 0.080
Tin (Sn), % 4.5 to 6.0
1.5 to 3.0
Zinc (Zn), % 0 to 0.8
17 to 25
Residuals, % 0
0 to 1.0