DN30-X: Transport of UF₆ Enriched up to 20%

Transport UF₆ enriched up to 20% in U-235 with a safe and proven solution.

Support evolving nuclear fuel requirements, particularly for advanced reactors and Small Modular Reactors (SMRs), which require uranium-235 enrichment levels above 5%
Transport and store LEU+ and HALEU with enrichment levels between 5% and 20% U-235
Control criticality risk while maintaining handling, loading and operating practices close to those used for standard 30B cylinders
Optimize transport logistics by avoiding constraints associated with the Criticality Safety Index (CSI)

Transport UF₆ enriched up to 10% U-235 with the 30B-10 cylinder and the DN30 overpack, designed for new fuel concepts
Transport UF₆ enriched up to 20% U-235 with the 30B-20 cylinder and the DN30 overpack, particularly suited to SMR requirements
Designed to keep operating characteristics of the standard 30B cylinder, including an identical shell and dimensions
Unchanged handling methods and equipment, with no changes to loading, unloading or handling operations
Criticality control with an internal Criticality Control System (CCS)
Optimization of shipments with the DN30-X package, featuring a CSI of 0, allowing an unlimited number of packages to be transported in the same shipment and shipped alongside other freight

Transport and store LEU+ and HALEU

with enrichment levels between 5% and 20% U-235

Standardized external shell: the 30B-X cylinder body is identical to the conventional 30B cylinder
Internal Criticality Control System: steel CCR rods containing boron carbide, manufactured from the same carbon steel as the cylinder
Compatibility with the DN30 overpack: a single overpack for 30B, 30B-10 and 30B-20 cylinders
Regulatory framework under deployment: U.S. license obtained; French approval in progress
Design based on applicable UF₆ transport and interim storage standards: ISO 7195 and ANSI N14.1
30B-X cylinder manufacturing launched in 2025

Challenges