# The Simple Pressure Vessels (Safety) Regulations 2016, Paragraph 2: Pressurised parts


The materials used for manufacturing the pressurised parts of the vessel must be—
(a) capable of being welded;
(b) ductile and tough, so that a rupture at minimum working temperature does not give rise to either fragmentation or brittle-type fracture;
(c) not adversely affected by ageing.

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Source: https://www.legislation.gov.uk/uksi/2016/1092/schedule/1/paragraph/2 (the official version)
Page: https://openlegislation.uk/simple-pressure-vessels-safety-regulations-2016/schedule-1/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.