This British Standard, which was prepared under the direction of the Welding Standards Committee, is a revision of BS 3019 : Part 1 : 1958, which is withdrawn. The standard was first published in 1958 as general recommendations for manual inert-gas tungsten arc welding, Part 1, 'Wrought aluminium, aluminium alloys
and magnesium alloys'. This revision takes account of development and greater usage of this process and sets out requirements for manual and mechanized inert-gas tungsten-arc welding of wrought and cast aluminium and aluminium alloys and magnesium alloys.
Weld acceptance levels are not specified since this British Standard would normally be used in conjunction with other standards. Where no such other standard is available, this British Standard can itself be used, provided that such additional requirements as are necessary are agreed between the contracting parties.
For wrought aluminium and aluminium alloys the material designations used are those in the International Alloy Designation System for Wrought Aluminium and Wrought Aluminium Alloys, which has been adopted in the United Kingdom and is now used in other British Standards.
This system is administered by the Aluminum Association Inc., who issue the 'Registration Record of International Alloy Designations and Chemical Composition Limits for Wrought Aluminum Alloys'.
For magnesium alloys the material designations used are those now used in other British Standards.
