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CR021A Copper vs. Nickel 686

CR021A copper belongs to the copper alloys classification, while nickel 686 belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is CR021A copper and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 15
51
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 230
780
Tensile Strength: Yield (Proof), MPa 140
350

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Maximum Temperature: Mechanical, °C 200
980
Melting Completion (Liquidus), °C 1090
1380
Melting Onset (Solidus), °C 1040
1340
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 380
9.8
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 99
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
70
Density, g/cm3 9.0
9.0
Embodied Carbon, kg CO2/kg material 2.6
12
Embodied Energy, MJ/kg 41
170
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
320
Resilience: Unit (Modulus of Resilience), kJ/m3 83
280
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 7.1
24
Strength to Weight: Bending, points 9.3
21
Thermal Diffusivity, mm2/s 110
2.6
Thermal Shock Resistance, points 8.1
21

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 99.95 to 99.998
0
Iron (Fe), % 0
0 to 5.0
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0
0 to 0.75
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 0
49.5 to 63
Phosphorus (P), % 0.0020 to 0.0070
0 to 0.040
Silicon (Si), % 0
0 to 0.080
Silver (Ag), % 0 to 0.015
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4