Alloy 201 Pipe Alloy 201 Tubing N02201 DIN 17551 2.4068 NA 12 are solid solution strengthened, commercially pure wrought materials with good mechanical properties over a wide range of temperature and excellent corrosion resistance, in particular hydroxides. Nickel 201 was a modification of 200 to control carbon (.02 max) which keeps it from being embrittled by intergranular precipitate at temperature of 600 °F to 1400 °F. Typically, the elemental restrictions of both, nickel 200 and nickel 201, dual-certified chemistry resulting in a single alloy with the desired characteristics of both alloys. 2.4068. Equal to Nickel 201.
ASTM B161 UNS N02201 Nickel Alloy is a commercially pure (99.6%) Nickel alloy very similar to Werkstoff 2.4066 but with a lower carbon content to so it can be used at higher temperatures. The lower carbon content also reduces hardness, making Werkstoff 2.4068 particularly suitable for cold-formed items. Application in chemical industry, production of caustic soda solution, chlorine, hydrogen chloride, food industry
Both Nickel 200 and 201 offer corrosion resistance in reducing and neutral media as well as in oxidizing atmospheres provided that the oxidizing media allows the formation of a passive oxide film. This oxide film accounts for the materials excellent resistance in caustic environments. Corrosion rates in both marine and rural atmospheres are very low. The resistance of Nickel 200/201 to corrosion by distilled and natural waters is excellent. Plus it also gives excellent service in flowing sea water even at high velocity, but in stagnant or very low-velocity seawater severe local attack may occur under fouling organisms or other deposits. In hot water systems where the steam contains carbon dioxide and air in certain proportions, corrosion rates will be initially high but will decrease with time if conditions favor the formation of a protective film.
2.4608 201 UNS 02201 Nickel Alloy is a nickel base superalloy with excellent carburization, oxidation and hot corrosion resistance. It has high creep-rupture strength with exceptional ability to withstand repeated thermal shock.The main difference between Nickel 200 and Nickel 201 is that the latter has a lower Carbon content. Because of its lower Carbon content, Nickel 201 is well-suited for applications that involve exposure to temperature above 600 degrees Fahrenheit.
What are the characteristics of Alloy 201 Pipe Alloy 201 Tubing?
- Highly resistant to various reducing chemicals
- Excellent resistance to caustic alkalies
- High electrical conductivity
- Excellent corrosion resistance to distilled and natural waters
- Resistance to neutral and alkaline salt solutions
- Excellent resistance to dry fluorine
- Widely used to handle caustic soda
- Good thermal, electrical and magnetostrictive properties
- Offers some resistance to hydrochloric acids and sulfuric acids at modest temperatures and concentrations
Alloy 201 Pipe Alloy 201 Tubing is normally limited to service at temperatures below 600 °F. At higher temperatures Nickel 200 products can suffer from graphitization which can result in severely compromised properties. When operating temperatures are expected to exceed 600 °F, carbon content becomes critical. The lower carbon content of Nickel 201 makes the material resistant to graphitization and therefore less subject to embrittlement. Nickel 200 & 201 are approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Nickel 200 is approved for service up to 600 °F while Nickel 201 is approved for service up to 1230 °F. Melting point is 2615-2635 °F.
Alloy 200 (ASTM B161 UNS N02200) Chemical Composition, %
| Ni |
Fe |
Cu |
C |
Mn |
S |
Si |
| 99.0 min |
0.40 max |
0.25 max |
0.15 max |
0.35 max |
0.01 max |
0.35 max |
Nickel 201 (ASTM B161 UNS N02201) Chemical Composition,%
| Ni |
Fe |
Cu |
C |
Mn |
S |
Si |
| 99.0 min |
0.40 max |
0.25 max |
0.02 max |
0.35 max |
0.01 max |
0.35 max |
Nickel 201 Alloy 201 Pipe Alloy 201 Tubing N02201 Application:
DIN 17744 17750 17751 17752 17753 2.4068 Chemical Composition, %
| Ni+Co |
Fe |
Cu |
C |
Mn |
S |
Si |
Mg |
Ti |
| 99.0 min |
0.40 max |
0.25 max |
0.02 max |
0.35 max |
0.005 max |
0.2 max |
0.15 max |
0.1 max |
- Food processing equipment
- Marine and offshore engineering
- Salt production
- Caustic handling equipment
- Manufacture and handling of sodium hydroxide, particularly at temperatures above 300 °F
- Reactors and vessels in which fluorine is generated and reacted with hydrocarbons
Applications where Nickel 201 UNS N02201 can be used include chemical processing and storage, synthetic fiber production, and processes where sodium hydroxide and fluorine is used. Other applications include aerospace and defense as well as food processing. Nickel 200/201 has exceptional resistance to caustic alkalies at various temperatures and concentrations.
Fabrication with ASTM B161 ASME SB 161 201 UNS 02201
All hot working and cold working practices can be utilized when shaping Nickel 200/201. Hot working temperature should be between 1200 °F and 2250 °F with heavy forming to be performed at temperature above 1600 °F. Annealing should be performed at a temperature between 1300 °F and 1600 °F. Care should be taken when choosing the annealing temperature and time at temperature for this can greatly influence the mechanical properties and structure of the material.
Nickel 201 UNS N02201 can be easily welded by conventional welding, brazing, and soldering processes with the exception of the oxyacetylene process.
Nickel 200/201 ASTM Specifications
| Pipe Smls |
Welded Pipe |
Tube Smls |
Tube Welded |
Sheet/Plate |
Bar |
Fitting |
| B161 |
B622 |
B161 |
B622 |
B162 |
B160 |
B163 |
| Standards |
Desciption |
| ASTM B160 |
Standard Specification for Nickel Rods and Bars |
| ASTM B161 |
Standard Specification for Nickel Seamless Pipes and Tubes |
| ASTM B162 |
Standard Specifications for nickel sheet metal and ribbons |
| ASTM B163 |
Standard Specifications for seamless nickel and nickel alloy condensers and heat-exchanger tubes |
| ASTM B704 |
Standard Specification for Welded Alloy Tubes |
| ASTM B366 |
Standard Specification for Factory-Made Wrought nickel and nickel alloy fittings |
| ASTM B564 |
Standard Specification for Nickel Alloy Forging |
| ASTM B705 |
Standard Specification for Nickel-Alloy Welded Pipe |
| ASTM B725 |
Standard Specification for Welded Nickel and Nickel Cooper Alloy Pipe |
| DIN 17744 (2002/09) |
nickel-forgeable alloy with molybdenum and chrome |
| DIN 17750 (2002/09) |
ribbons and sheet metal out of nickel with nickel-wrought alloy properties |
| DIN 17751 (2002/09) |
tubes out of nickel with nickel-wrought alloy properties |
| DIN 17752 (2002/09) |
rod made from nickel with nickel-wrought alloy properties |
| DIN 17753 (2002/09) |
wire out of nickel with nickel-wrought alloy properties |
| VdTÜV / Werkstoffblatt 432/1 |
extremely corrosion resistant nickel based alloy, niCr21Mo, material-nr. 2.4858 ribbon, sheet metal |
| VdTÜV / Werkstoffblatt 432/2 |
432/2 extremely corrosion resistant nickel based alloy, NiCr 21 Mo, material-nr. 2.4858 seamless pipe |
| VdTÜV / Werkstoffblatt 432/3 |
extremely corrosion resistant nickel based alloy, NiCr 21 Mo, material-nr. 2.3858 rod steel, forging |
Mechanical Properties Room Temperature of N02201 Various Products
| Product Form |
Condition |
Tensile Strength
(ksi) |
.2% Yield Strength
(ksi) |
Elongation (%) |
Hardness (HRB) |
| Rod & Bar |
Hot Finished |
60-85 |
15-45 |
55-35 |
45-80 |
| Rod & Bar |
Cold Drawn/Annealed or Hot-Finished/Annealed |
55-75 |
15-30 |
55-40 |
45-70 |
| Plate |
Hot-Rolled/Annealed |
55-80 |
15-40 |
60-40 |
45-75 |
| Sheet |
Annealed |
55-75 |
15-30 |
55-40 |
70 max |
| Tube & Pipe |
Seamless Annealed |
50 Min |
12 Min |
35 Min |
70 max |
| Material No. |
DIN 17744 17750 17751 17752 17753 2.4068 |
| EN symbol (short) |
LC-Ni 99 |
| AISI/SAE |
— |
| UNS |
ASTM B160 B161 B162 B163 B366 B564 B704 B705 B725 N02201 |
| AFNOR |
— |
| BS |
BS 3072 3073 3074 3075 3076 NA12 |
| Alloy |
Nickel Alloy 201 |
| Registered work's label |
— |
| Standards |
VdTÜV 345 |
Material 2.4068 Nickel Alloy 201 – pure nickel - is chiefly used in the chemical industry. Our product range in 2.4068 Nickel Alloy 201 are tubes and pipes, fittings and flanges, accessories
| Alloy 201 Special characteristics |
| Temperature range |
Density g/cm³ |
Hardness (HB) |
for pressure bombs up to 600°C
for caustic soda evaporation up to 450°C
Melting temperature 1435-1445 °C |
8.89 |
|
| Welding filler Material |
| 2.4155, 2.4620, 2.4806, 2.4156 |
ASTM B161 Standard Specification for Nickel Seamless Pipe and Tube
