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A commercially pure Nickel (typically 99.6% Nickel), Nickel 201 is essentially the same as Nickel 200, but with a lower carbon content to prevent embrittlement by inter granular carbon at temperatures over 315°C (600°F). Lower carbon content also reduces hardness, which makes it ideally suited for spinning and cold forming. It is also preferred to Nickel 200 for applications involving exposure to temperatures above 315°C (600°F).
Nickel 201 (UNS N02201/W.Nr. 2.4061 & 2.4068) is thelow-carbon version of Nickel 200. Typical applications are caustic evaporators,combustion boats, plater bars, and electronic components.Nickel 201, because of its low base hardness and lowerwork-hardening rate, is particularly suited for spinning andcold forming.
Because it is a low-carbon material (0.02%max.), alloy 201 is not subject to embrittlement by intergranularly precipitated carbon or graphite when held at temperaturesof 600° to 1400°F (315° to 760°C) for extended times, provided carbonaceous materials are not in contact with it. It is,therefore, preferred to Nickel 200 in all cases where temperatures exceed 600°F (315°C).
Nickel 201 is used for laboratory crucibles that must be capable of withstanding oxidizing furnace atmospheres up to2000°F (1100°C).The material is subject to intergranular embrittlement by sulfur compounds at temperatures above 600°F (315°C). It is preferred to Nickel 200 for applicationsinvolving exposure to temperatures above 600°F (315°C). It is resistant to acids and alkalis, and dry gases at room temperature. It is also resistant to mineral acids depending on the temperature and concentration of the solution.
Grade | C≤ | Mn≤ | Si≤ | S≤ | Cu≤ | Fe≤ | Ni(min) |
Ni201 | 0.02 | 0.35 | 0.35 | 0.01 | 0.25 | 0.40 | 99.0 |
Density: 8.89 g/cm3
Melting point: 1435-1446°C
Form | Tensile Strength | Yield Strength (0.2% Offset) | Elongation in 2 in. (51 mm), % | Hardness | |||
Brinell | Rockwell B | ||||||
ksi | MPa | ksi | MPa | ||||
Rod and Bar | |||||||
Hot-Finished and Hot-Finished, Annealed Cold-Drawn Cold-Drawn, Annealed | 50-60 60-100 50-60 | 345-415 415-690 345-415 | 10-25 35-90 10-25 | 70-170 240-620 70-170 | 60-40 35-10 60-40 | 75-100 125-200 75-100 | – – – |
Plate | |||||||
Hot-Rolled Hot-Rolled, Annealed | 50-70 50-70 | 345-485 345-485 | 12-35 12-35 | 83-240 83-240 | 60-35 60-40 | – – | – – |
Tube and Pipe (Seamless) | |||||||
Cold-Drawn, Annealed Stress-Relieved | 50-70 60-105 | 345-485 415-725 | 10-28 30-85 | 70-195 205-585 | 60-40 35-15 | – – | 62 max. 70-95 |
Nickel 201 Equivalent Grades
STANDARD | WERKSTOFF.NR. | UNS | JIS | BS | GOST | EN |
Ni201 | 2.4061/2.4068 | N02201 | NW 2201 | NA 12 | HП-2 | LC-Ni 99 |
Nickel 201 ASTM Specifications
Pipe Smls | Pipe Welded | Tube Smls | Sheet/Plate | Bar | Forging | Fitting |
B161,B163 | B474,B464 | B161,B163 | B162 | 160 | B564 | B366 |
Nickel 201 Application:
Caustic evaporators
Electronic components
Reactors and vessels in which fluorine is generated and reacted with hydrocarbons
Heat exchangers
Stamped or etched fabrications
