NB/T 25070-2017Steels for steam turbine blades in nuclear power plants (English PDF)

NB/T 25070-2017 is the English-translated version of 核电汽轮机叶片用钢.

Steel for the blades of steam turbines in nuclear power plants is specified by NB/T 25070-2017, a recommended energy industry standard of China.

It sets the ordering requirements, the dimensions, the shape and the permitted deviations, the technical requirements, the test methods and the inspection rules, and it also covers packaging, marking and the quality certificate.

The material it governs is hot rolled and forged steel for nuclear steam turbine blades. It falls under F40 in the Chinese classification and 27.120.99 internationally.

Its references are largely chemical analysis and mechanical test documents, including GB/T 222-2006 and the GB/T 223 series, among them GB/T 223.11, GB/T 223.14 and GB/T 223.60, together with GB/T 226. Issued on 10 February 2017, it has applied since 1 July 2017.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

NB/T 25116-2020|NB/T 25014-2013|NB/T 25006-2011|NB/T 25005-2011|GB/T 38921-2020|GB/T 36285-2018

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