Carpenter NeutroSorb and NeutroSorb PLUS are austenitic stainless steels modified with boron to increase the thermal neutron cross-section. These alloys are used for handling and storing radioactive material such as spent fuel. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SS-563. Producer or source: Carpenter.