# The Nuclear Safeguards (Notification) Regulations 2004, Paragraph: EXPLANATORY NOTE


The materials used for centrifuge rotating components are:
(a) Maraging steel capable of an ultimate tensile strength of 2.05 x 109 N/m2 (300,000 psi) or more;
(b) Aluminium alloys capable of an ultimate tensile strength of 0.46 x 109 N/m2 (67,000 psi) or more;
(c) Filamentary materials suitable for use in composite structures and having a specific modulus of 12.3 x 106m or greater and a specific ultimate tensile strength of 0.3 x 106m or greater (“Specific Modulus” is the Young's Modulus in N/m2 divided by the specific weight in N/m3; “Specific Ultimate Tensile Strength” is the ultimate tensile strength in N/m2 divided by the specific weight in N/m3).

---
Source: https://www.legislation.gov.uk/uksi/2004/1255/schedule/part/II/paragraph/wrapper20n1 (the official version)
Page: https://openlegislation.uk/nuclear-safeguards-notification-regulations-2004/schedule/part-II/paragraph-wrapper20n1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.