NB/T 47019.6-2021
Technical conditions for ordering tubes for boilers and heat exchangers Part 6: Austenitic-ferritic duplex stainless steel (English Version)
- Standard No.
- NB/T 47019.6-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- 国家能源局
- Latest
- NB/T 47019.6-2021
- Replace
- NB/T 47019.6-2011
NB/T 47019.6-2021 history
- 2021 NB/T 47019.6-2021 Technical conditions for ordering tubes for boilers and heat exchangers Part 6: Austenitic-ferritic duplex stainless steel
- 2011 NB/T 47019.6-2011 Purchase technical specification for boiler&heater exchanger tubes/pipes.Part 6:Ferrite/austenite duplex steel
