EJ/T 404-1999
Specification for primary system seamless stainless steel butt-welding fittings for pressurized water reactor nuclear power plants (English Version)

Standard No.

EJ/T 404-1999

Language

Chinese, Available in English version

Release Date

1998

Published By

Professional Standard - Nuclear Industry

Status

Be replaced 2011-10

Replace By

NB/T 20007.9-2011

Latest

NB/T 20007.9-2019

EJ/T 404-1999 history

• 2019 NB/T 20007.9-2019 Stainless steel for pressurized water reactor nuclear power plants Part 9: Seamless butt-welding fittings of austenitic stainless steel grades 1, 2, and 3
• 2011 NB/T 20007.9-2011 Stainless steel for pressurized water reactor nuclear power plant.Part 9:Class 1、2、3 austenitic stainless steel seamless buttwelding fittings
• 1998 EJ/T 404-1999 Specification for primary system seamless stainless steel butt-welding fittings for pressurized water reactor nuclear power plants
• 1989 EJ 404-1989 Specifications for Seamless Butt-Welded Stainless Steel Pipe Fittings for Primary Circuit Process System of 300 MW PWR Nuclear Power Plant

EJ/T 404-1999 Specification for primary system seamless stainless steel butt-welding fittings for pressurized water reactor nuclear power plants was changed to NB/T 20007.9-2011 Stainless steel for pressurized water reactor nuclear power plant.Part 9:Class 1、2、3 austenitic stainless steel seamless buttwelding fittings.