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H08 C65400 Bronze vs. H08 C72500 Copper-nickel

Both H08 C65400 bronze and H08 C72500 copper-nickel are copper alloys. Both are furnished in the H08 (spring) temper. They have 89% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is H08 C65400 bronze and the bottom bar is H08 C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.34
Rockwell B Hardness 100
90
Rockwell Superficial 30T Hardness 82
76
Shear Modulus, GPa 43
45
Tensile Strength: Ultimate (UTS), MPa 890
640

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 200
210
Melting Completion (Liquidus), °C 1020
1130
Melting Onset (Solidus), °C 960
1060
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 36
54
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 31
35
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 45
55
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 10
16
Thermal Shock Resistance, points 32
22

Alloy Composition

Chromium (Cr), % 0.010 to 0.12
0
Copper (Cu), % 93.8 to 96.1
85.2 to 89.7
Iron (Fe), % 0
0 to 0.6
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
8.5 to 10.5
Silicon (Si), % 2.7 to 3.4
0
Tin (Sn), % 1.2 to 1.9
1.8 to 2.8
Zinc (Zn), % 0 to 0.5
0 to 0.5
Residuals, % 0
0 to 0.2