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Database: 189760 (18 Oct 2025)
NB/T 20007.20-2019 English PDF
NB/T 20007.20: Evolution and historical versions
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Standard Title (Description)
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NB/T 20007.20-2019
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(Stainless steel for pressurized water reactor nuclear power plants Part 20: Martensitic stainless steel for pumps Class A, B, C non-pressure casting internals)
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NB/T 20007.20-2019
NB/T 20007.20-2013
English
959
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Stainless steel for pressurized water reactor power plant. Part 20: Martensitic stainless steel for non-pressure-retaining internal category A, B and C parts of pumps
Obsolete
NB/T 20007.20-2013
PDF similar to NB/T 20007.20-2019
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Basic data
Standard ID
NB/T 20007.20-2019 (NB/T20007.20-2019)
Description (Translated English)
(Stainless steel for pressurized water reactor nuclear power plants Part 20: Martensitic stainless steel for pumps Class A, B, C non-pressure casting internals)
Sector / Industry
Energy Industry Standard (Recommended)
Classification of Chinese Standard
J31
Classification of International Standard
77.140.80
Date of Issue
2019
Date of Implementation
2020-07-01
Issuing agency(ies)
National Energy Administration