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Database: 189760 (18 Oct 2025)
NB/T 20007.25-2021 English PDF
NB/T 20007.25: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
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NB/T 20007.25-2021
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(Stainless steel for pressurized water reactor nuclear power plant - Part 25: Austenitic-ferritic stainless steel for pumps A, B, C non-pressure casting internal parts)
Valid
NB/T 20007.25-2021
NB/T 20007.25-2013
English
959
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Stainless steel for pressurized water reactor nuclear power plant. Part25: Chromium nickel austenitic-ferritic stainless steel containing no molybdenum for no-pressure-retaining cast internal pump parts of category A, B and C
Obsolete
NB/T 20007.25-2013
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Basic data
Standard ID
NB/T 20007.25-2021 (NB/T20007.25-2021)
Description (Translated English)
(Stainless steel for pressurized water reactor nuclear power plant - Part 25: Austenitic-ferritic stainless steel for pumps A, B, C non-pressure casting internal parts)
Sector / Industry
Energy Industry Standard (Recommended)
Classification of Chinese Standard
J31
Classification of International Standard
77.140.80
Date of Issue
2021-01-07
Date of Implementation
2021-07-01
Older Standard (superseded by this standard)
NB/T 20007.25-2013
Regulation (derived from)
National Energy Administration Announcement No. 1 of 2021
Issuing agency(ies)
National Energy Administration