ASTM B349/B349M-16(2021)

Podrobné informace

Označení: ASTM B349/B349M-16(2021)

Datum vydání: 01.04.2021

Stran: 3

Země: Americká technická norma

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Anotace

This specification covers one grade of virgin zirconium metal commonly designated as sponge because of its porous, sponge-like texture, but it may also take other forms such as chunklets. The one grade described is designated as Reactor Grade R60001, suitable for use in nuclear applications. The main characteristic of the reactor grade is its low nuclear cross section as achieved by removal of hafnium. Zirconium metal is usually prepared by reduction of zirconium tetrachloride, and gets its physical characteristics from the processes involved in production. These characteristics may be expected to vary greatly with manufacturing methods. Only virgin zirconium metal, in identified, uniform, well-mixed blends, shall be used. The zirconium metal shall conform to the requirements for chemical composition specified.


Keywords:
nuclear, virgin zirconium metal, zirconium chunklets, zirconium sponge,, ICS Number Code 27.120.99 (Other standards related to nuclear energy),77.120.99 (Other non-ferrous metals and their alloys),77.150.99 (Other products of non-ferrous metals)