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H08 C65400 Bronze vs. H08 C70620 Copper-nickel

Both H08 C65400 bronze and H08 C70620 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 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is H08 C65400 bronze and the bottom bar is H08 C70620 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
87
Rockwell Superficial 30T Hardness 82
75
Shear Modulus, GPa 43
46
Tensile Strength: Ultimate (UTS), MPa 890
570

Thermal Properties

Latent Heat of Fusion, J/g 260
220
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 1020
1120
Melting Onset (Solidus), °C 960
1060
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 36
49
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
33
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 45
51
Embodied Water, L/kg 310
300

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.7
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 32
20

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0.010 to 0.12
0
Copper (Cu), % 93.8 to 96.1
86.5 to 90
Iron (Fe), % 0
1.0 to 1.8
Lead (Pb), % 0 to 0.050
0 to 0.020
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 2.7 to 3.4
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 1.2 to 1.9
0
Zinc (Zn), % 0 to 0.5
0 to 0.5
Residuals, % 0 to 0.2
0 to 0.5