MakeItFrom.com
Menu (ESC)

C71640 Copper-nickel vs. R30001 Cobalt

C71640 copper-nickel belongs to the copper alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 22 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 C71640 copper-nickel and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
86
Tensile Strength: Ultimate (UTS), MPa 490 to 630
620

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Melting Completion (Liquidus), °C 1180
1530
Melting Onset (Solidus), °C 1120
1260
Specific Heat Capacity, J/kg-K 410
430
Thermal Conductivity, W/m-K 29
15
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.9
9.0
Embodied Carbon, kg CO2/kg material 5.0
8.9
Embodied Energy, MJ/kg 73
130
Embodied Water, L/kg 280
460

Common Calculations

Stiffness to Weight: Axial, points 8.7
14
Stiffness to Weight: Bending, points 20
22
Strength to Weight: Axial, points 15 to 20
19
Strength to Weight: Bending, points 16 to 18
18
Thermal Diffusivity, mm2/s 8.2
3.7
Thermal Shock Resistance, points 16 to 21
19

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 61.7 to 67.8
0
Iron (Fe), % 1.7 to 2.3
0 to 3.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 1.5 to 2.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 29 to 32
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0