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Nickel Alloy 200 Seamless Copper Tube UNS N02200 With High Electrical Conductivity

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Nickel Alloy 200 Seamless Copper Tube UNS N02200 With High Electrical Conductivity

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Nickel Alloy 200 Seamless Copper Tube UNS N02200 With High Electrical Conductivity

Description:

Nickel 200 and Nickel 201 are solid solution strengthened, commercially pure wrought materials with good mechanical properties over a wide range of temperatures and excellent resistance to many corrosives, in particular hydroxides. Nickel 201 was a modification of 200 to control carbon (.02 max) which keeps it from being embrittled by intergranular precipitates at temperatures of 600° F to 1400° F in many processes. Typically, the elemental restrictions of both, nickel 200 and nickel 201, are combined into one, dual-certified chemistry resulting in a single alloy with the desired characteristics of both alloys, Nickel 200/201.

Characteristics:

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 and sulfuric acids at modest temperatures and concentrations

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 sea water 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.

Nickel 200 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.

Specifications:

UNS N02201

BS 3072, BS 3073, BS 3074, BS 3075 and BS 3076 (NA12)

ASTM B160, ASTM B162, ASTM B 163, ASTM B 725 and ASTM B 730

SAE AMS 5553 Sheet, Strip

ASME SB-160, ASME SB-163 and Boiler Code Sections III, VIII, IV

DIN 17740, 17750, 17751, 17752, 17753 and 17754

Werkstoff Nr. 2.4061 and WS2.4068

Chemical Composotion:

Chemical Composition Limits

Weight%