NB/T 20007.29-2014Stainless steel for pressurized water reactor nuclear power plants - Part 29: Non-pressure-retaining category A, B and C austenitic-ferritic duplex stainless steel castings for pumps (English PDF)

NB/T 20007.29-2014 is the English-translated version of 压水堆核电厂用不锈钢 第29部分：泵用奥氏体-铁素体双相不锈钢A、B、C类非承压铸件.

NB/T 20007.29-2014 belongs to the recommended Chinese energy industry series on stainless steel for pressurized water reactor nuclear power plants.

Part 29 deals with austenitic-ferritic duplex stainless steel castings used in pumps and not retaining pressure, divided into categories A, B and C. It sets the technical requirements for their manufacture, the chemical composition and the mechanical properties to be met, the test methods, and the non-destructive examination applied to the castings.

Analysis and testing follow cited standards from the GB/T 223 family, among them GB/T 223.5, GB/T 223.19 and GB/T 223.68. Issued on 15 October 2014, it has applied since 1 March 2015.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

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