The metal components of packaging certified for the transportation of DOT Hazard Class 7 -Radioactive Material, that meets the requirements of 10 CFR 71, must be in compliance with NRC Nuclear Regulatory Guide NUREG/CR-3854, Fabrication Criteria for Shipping Containers. In the requirements of NUREG/CR-3854, the components of a RAM packaging that are used for shielding or criticality control must be fabricated in accordance with ASME Section Ⅲ Subsection NG (criticality) or NF (shielding). ASME Code Case N-519 was issued, and subsequently retired, that approved the use of 6061-T6 and 6061-T651 aluminum in the construction of ASME Section Ⅲ, Division 1, Class 1 welded pressure vessels applications at temperatures up to 300 ℉. This paper discusses the need for and justifies the use of aluminum as shielding and criticality control components in applications within Type B radioactive material packages.
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