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H08 C12900 Copper vs. H08 C70620 Copper-nickel

Both H08 C12900 copper and H08 C70620 copper-nickel are copper alloys. Both are furnished in the H08 (spring) temper. They have 88% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is H08 C12900 copper and the bottom bar is H08 C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Poisson's Ratio 0.34
0.34
Rockwell B Hardness 60
87
Rockwell Superficial 30T Hardness 63
75
Shear Modulus, GPa 43
46
Tensile Strength: Ultimate (UTS), MPa 420
570

Thermal Properties

Latent Heat of Fusion, J/g 210
220
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 1080
1120
Melting Onset (Solidus), °C 1030
1060
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 380
49
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 32
33
Density, g/cm3 9.0
8.9
Embodied Carbon, kg CO2/kg material 2.6
3.4
Embodied Energy, MJ/kg 41
51
Embodied Water, L/kg 330
300

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.7
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 13
18
Strength to Weight: Bending, points 14
17
Thermal Diffusivity, mm2/s 110
14
Thermal Shock Resistance, points 15
20

Alloy Composition


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Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 99.88 to 100
86.5 to 90
Iron (Fe), % 0
1.0 to 1.8
Lead (Pb), % 0 to 0.0040
0 to 0.020
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.050
9.0 to 11
Phosphorus (P), % 0
0 to 0.2
Silver (Ag), % 0 to 0.054
0
Sulfur (S), % 0
0 to 0.020
Tellurium (Te), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5