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Purpose and scope
RCC-MR code was developed for sodium-cooled fast reactors (SFR) and ITER Vacuum Vessel (FR-ITER).
It provides the rules for designing and building mechanical components involved in areas subjected to significant creep. In particular, it incorporates sizing rules for thin shells.
Background and use
The RCC-MR code, drafted by AFCEN’s RCC-MR Subcommittee together with the Tripartite Committee formed on March 16, 1978 by the Commissariat à l’Energie Atomique, Electricité de France and Novatome, to establish the applicable rules for designing components working at high temperatures. AFCEN published four editions of RCC-MR in 1985, 1993, 2002 and 2007.
The RCC-MR code was used to design and build the prototype Fast Breeder Reactor (PFBR) developed by IGCAR in India and the ITER Vacuum Vessel.
Available editions on January 1st 2017
New editions of the RCC-MR code were released in 2012 and 2015 under the name RCC-MRx.
Since 2009, the RCC-MRx code created by AFCEN’s RCC-MRx Subcommittee has been a merge of two documents:
- RCC-MR code,
- RCC-MX code, drafted by the RCC-MX Approval Committee formed on March 31, 1998 by the Commissariat à l’Energie Atomique, AREVA-TA and AREVA-NP for the specific needs of the RJH project (Jules Horowitz reactor). This code applies to the design and construction of experimental reactors, auxiliary systems and associated experimental devices. It can also be used for the design and construction of components and systems for existing facilities.
The RCC-MRx code is refered for the design of the ASTRID project (Advanced Sodium Technological Reactor for Industrial Demonstration), for the design of the primary circuit in MYRRHA (Multi-purpose hYbrid Research Reactor for High-tech Applications) and the design of the target station of the ESS project (European Spallation Source).
An erratum for RCC-MR 2007, RCC-MRx 2012 and 2015 has been published, it is available for download here after : Erratum Appendix A16.
An errata has been published for RCC-MR code, Edition 2007, the appendix is available here:
Errata RCC-MR 2007 - Appendix A6Design and construction rules for mechanical components of nuclear installations
RCC-MR 2007 - ENDesign and construction rules for mechanical components of nuclear installations
Let’s take part in codes update
AFCEN codes continuously improve considering experience feedback of code users. Do you have a question about interpretation of one code paragraph ? Do you propose a code modification ? or you simply want to share with the industry your experience feedback ? The floor is yours. You may download the corresponding form, fill it and then send it to the concerned sub committee who provides answer. Our target is to answer 100% of request within a delay no longer than 3 months.