2.1.1 The materials
used in the construction of the ACV are to be manufactured and tested
in accordance with the requirements of the Rules for the Manufacture,
Testing and Certification of Materials (hereinafter referred
to as the Rules for Materials).
2.1.2 Material
specifications are to be clearly indicated on the construction drawings.
For design purposes, properties of aluminium alloys are to be taken
for the welded condition. The minimum strength properties of aluminium
alloys approved for structural use are given in Ch 13, 8.3 Fabrication and welding 8.3.2 of the Rules for Materials.
2.1.3 Where bimetallic
connections are made, involving dissimilar metals, measures are to
be incorporated to prevent galvanic corrosion. The design is to ensure
that the location of all bimetallic connections allows for regular
inspection and maintenance of the joints during service.
2.1.4 Further requirements
for aluminium alloy construction are given in Pt 7, Ch 2 Construction Procedures of the SSC Rules. ACVs constructed of materials other
than aluminium will be specially considered.