Both ASTM B161 ASME SB 161 N02200 Alloy 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 ASTM B161 B163 ASME SB161 SB163 N02200 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.

ASTM B161 B163 ASME SB161 SB163 N02200 is normally limited to service at temperatures below 600 °F. At higher temperature Nickel Alloy 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 Alloy 200 & 201 are approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Nickel Alloy 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.

ASTM B161 B163 ASME SB161 SB163 N02200 is unalloyed nickel with excellent corrosion resistance and excellent stability against alkaline media and good mechanical properties in a broad temperature range. Shows good corrosion resistance under reducing conditions, e.g. hydrofluoric acid and hydrochloric acid. Shows good stability under oxidizing conditions (by creating a surface protection film). Material 2.4066 (Nickel Alloy 200) is used in the chemical industry and petrochemical industry.

What are the Characteristics of Alloy 200 N02200?

• 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

ASTM B161 B163 ASME SB161 SB163 N02200 is normally limited to service at temperatures below 600 °F. At higher temperatures Nickel Alloy 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 Alloy 200 & 201 are approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Nickel Alloy 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 Pipe Alloy 200 Tubing N02200 Applications:

• 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 Alloy 200 N02200 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 Alloy 200/201 has exceptional resistance to caustic alkalies at various temperatures and concentrations.

Fabrication with ASTM B161 B163 ASME SB161 SB163 N02200

All hot working and cold working practices can be utilized when shaping Nickel Alloy 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.

Alloy 200 Pipe Alloy 200 Tubing N02200 can be easily welded by conventional welding, brazing, and soldering processes with the exception of the oxyacetylene process.