AS/NZS 3992:1998

Specifies requirements for the qualification of welding and brazing procedures, welders and brazers, and requirements for production weld testing, other than non-destructive examination, when used in the construction of boilers, pressure vessels, piping and their components. Specific details are given for manual metal-arc welding, flux cored-arc welding, gas metal-arc welding, gas tungsten-arc welding, submerged-arc welding, electroslag, and oxy-acetylene welding. Details are also given for torch brazing, furnace brazing, induction brazing, resistance brazing and dip brazing. The welding and brazing of carbon, carbon-maganese, and low and high alloy steels; as well as copper, aluminium, nickel, titanium and alloys of these materials, are included.

This Standard specifies requirements for the qualification of welding and brazing procedures, welders and brazers, and requirements for production weld testing other than non-destructive examination, when used in the construction, alteration and repair of boilers, pressure vessels, pressure piping and their components as specified in AS/NZS 1200, AS 1210, AS 1228 and AS 4041. This Standard may apply to automotive LPG fuel vessels (covered by AS/NZS 3509), serially produced pressure vessels (covered by AS 2971) or welded gas cylinders (covered by AS 2030), when specified by these Standards. This Standard does not apply to pipelines in accordance with AS 2885 except where referenced. The Standard provides specific details for the following:(a) Manual metal-arc welding, flux cored arc welding, gas metal-arc welding, gas tungsten-arc welding, submerged arc welding, plasma transferred arc welding, electroslag welding and oxy-acetylene welding.(b) Torch brazing, furnace brazing, induction brazing, resistance brazing and dip brazing.(c) The welding and brazing of carbon, carbon-manganese, and low and high alloy steels; and copper, aluminium, nickel, titanium and alloys of these materials.The principles established in this Standard may be used in the qualification of processes, materials and applications not covered by the above (see also Clause 1.5 and Clause 1.6). For flash butt welding qualification, refer to AS 4413. Specific details for stud welding, electron-beam welding, plasma arc welding, electro-gas welding, and friction welding processes are not covered by this Standard. Where this Standard makes reference to other Standards, these referenced Standards are not intended to be limiting or exclusive and other equivalent National Standards acceptable to the parties concerned may be substituted for the referenced Standards. AS/NZS 1200 provides a list of pressure equipment Standards used in Australia and New Zealand. Compliance with ANSI/ASME Section IX, BS EN 287 or BS EN 288 is deemed as an acceptable alternative to the requirements of this Standard where agreed between the parties concerned. Where this Standard (AS/NZS 3992) requires tests not already completed under these overseas Standards then this can be covered by those additional tests only, rather than repeating the full set of tests, e.g. as part of a production test plate.

First published in Australia as AS 3992-1992.
Revised and redesignated AS/NZS 3992:1998.