NB/T 20005.11-2012Carbon Steel and Low Alloy Steel for Pressurized Water Reactor Nuclear Power Plant - Part 11: Seamless Pipes for Classes S1 and S2 Supports (English PDF)

NB/T 20005.11-2012 is the English-translated version of 压水堆核电厂用碳钢和低合金钢 第11部分：S1、S2级支承件用无缝钢管.

Seamless steel pipe for Class S1 and S2 supports in pressurized water reactor nuclear power plants is the product covered by NB/T 20005.11-2012, a recommended Chinese energy industry standard and Part 11 of the NB/T 20005 series.

It prescribes the technical requirements for the manufacture, testing, inspection and acceptance of carbon steel and low alloy steel seamless tube of that grade.

The pipe it addresses is the load-bearing tube used in S1 and S2 class supporting structures, and the Chinese classification H48 with international classification 77.140.75 confirms its place among steel pipes for pressure purposes.

It quotes the GB/T 223 series of chemical analysis methods, GB/T 228.1-2010 and GB/T 229, and GB/T 241 and GB/T 242. Issued on 6 January 2012, it has applied since 6 April 2012.

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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.

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