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H04 C67500 Bronze vs. H04 C75700 Nickel Silver

Both H04 C67500 bronze and H04 C75700 nickel silver are copper alloys. Both are furnished in the H04 (full hard) temper. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is H04 C67500 bronze and the bottom bar is H04 C75700 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 14
3.2
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 40
45
Shear Strength, MPa 350
350
Tensile Strength: Ultimate (UTS), MPa 580
610
Tensile Strength: Yield (Proof), MPa 370
580

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 890
1040
Melting Onset (Solidus), °C 870
990
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 110
40
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 27
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 47
56
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
19
Resilience: Unit (Modulus of Resilience), kJ/m3 650
1410
Stiffness to Weight: Axial, points 7.3
7.8
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 34
12
Thermal Shock Resistance, points 19
23

Alloy Composition


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Aluminum (Al), % 0 to 0.25
0
Copper (Cu), % 57 to 60
63.5 to 66.5
Iron (Fe), % 0.8 to 2.0
0 to 0.25
Lead (Pb), % 0 to 0.2
0 to 0.050
Manganese (Mn), % 0.050 to 0.5
0 to 0.5
Nickel (Ni), % 0
11 to 13
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 35.1 to 41.7
19.2 to 25.5
Residuals, % 0 to 0.5
0 to 0.5