AS/NZS A1 Structural steel welding – Part 1: Welding of steel structures: Amendment 1. Correction amendment declared by Standards Australia to. AS/NZS Structural steel welding Part 1: Welding of steel structures; AS/NZS Structural steel welding Part 3: Welding. This Standard specifies requirements for the welding of steel structures made up of combinations of steel plate, sheet or sections, including hollow sections and.
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Welding positions shall comply with AS see also Table 4.
This Amendment applies to Clauses 2. Classifications shall also comply with the 15554.1 strength and impact designations shown in Table 4.
Aids to visual examination may be used wherever necessary to facilitate the assessment of an imperfection. Thursday, 31 March 4: The size of seal welds shall comply with Clauses 3. Weld procedures qualified using consumables classified under the former systems remain valid and may continue to be used without further qualification where consumable equivalence can be established.
Larger fillet welds are not permitted unless steel compound joint see Clause 3. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities.
AS/NZS – Standards Australia
See Appendix D, Item k. Instructions for the qualification of welding procedures on steels not listed in Clause 2. Please help us to share our service with your friends. The main area of change affects the former type 12 and 13 designations which will now become type 13 although some type 13 consumables with good impact resistance due to the presence of basic minerals in the flux coating will most likely be classifiable as a type See Appendix D, Items g and h.
Licensees are permitted to print once for Internal use limited to the Quantity specified in the SAI Global Infostore order only excludes electronic pads stel forms.
To extend the validity of weld procedures qualified under previous classification systems to utilize consumables classified under the harmonized ISO based classification system, the procedure described in this Appendix should be adopted, and where contractually required, agreed between the fabricator and principal prior to the commencement of welding to minimize the need for the fabricator to requalify weld procedures. Ultrasonic testing Clause 6. These standards are developed dtructures an open process of consultation and consensus, in which all interested parties are invited to participate.
V-notch impact test is required for heat-affected zone Where practicable, it is recommended that the principal resolve any problems with the fabricator, before work is commenced. In most cases extending the procedure qualification will be particularly if both the trade name and classification of the welding known. For the purposes of Table 6.
For additional requirements for hollow sections, see Clause 4. This Standard incorporates Amendment No. Welding of high strength quenched and tempered steels Part 5: Type of weld Usage Butt throughout Fillet throughout Used in any joint Used only where diameter of smaller member is less than one-third of that of larger member Combination of butt and fillet with Used in any joint gradual transitions between them b Partially or fully flattened Where the end of a circular hollow section member is partially flattened to a suitable shape, Items a i and a ii above shall apply and, for the application of Item a iithe diameter of the flattened portion of the section shall be measured in a plane perpendicular to the axis of the main section, the plane being taken at the point of intersection of the axis of the branch section with the surface of the main section.
The intention is that the designer select the category suited to the severity of the service and nominate this on the drawings. These records shall be kept and made available to those authorized to examine them. The following are represented on Committee WD Fire precautions Part 2: The ultrasonic sensitivity to be used for parent metal scanning in areas where welds are to be made should comply with ASi. Care should be taken in applying this Table to imported steels as verification tests may be required.
The maximum permissible levels of imperfections shall be as given in Table 6. Inspection aids and measuring devices shall be sufficient to enable the inspector to detect imperfections that could occur on welds and test pieces. Free shrinkage restricted structure e. Provided each preparation complies with the requirements of Table E2, Appendix E, for double-V, double-bevel, double-U or double-J welds, preparations of unequal depth shall be deemed prequalified also.
The welding procedure may be approved on the welding procedure sheets by a representative of the principal, who shall have, as a minimum, the qualification of a welding supervisor in accordance with Clause 4.
The system A classification though remains consistent with the method used for other consumables types. The specimen shall comply with Table 4.
Where the consumable used to qualify a weld procedure has been identified on the weld procedure using its trade name and classification, the fabricator should append a note on the original procedure qualification record PQR noting the change of classification for the welding consumable.
Where the manufacturer makes specific recommendations covering conditioning and pretreatment of flux prior to use, such recommendations shall be followed. The minimum spacing of lines of slot welds in a direction transverse to their length shall be four times the width of the slot.
See Appendix D, Items t and u. The tests listed within the appropriate sections of this Standard should be performed, including the hardness comparison test Clause 4. This Standard does not apply to the welding of pressure vessels and pressure piping. Alternatively, the weld may be considered to sfeel defective and dealt with in accordance with Clause 6.
Typical joint preparations for connections butt-welded from one side are shown in Figure 4. However, where it can be demonstrated, by the use of fracture mechanics or other suitable methods of assessment, that the defects will not be injurious to the performance of the structure, such defects do not need to be repaired or rewelded; provided that, for any such defect, such methods of assessment are acceptable to both the principal and the fabricator [see Paragraph B5, Appendix B and Appendix D, Item wwlding ].
The connections shown in Figure 4.
Examples include but are not limited to a change from V-shape to U-shape, a change from V-shape to bevel-shape. Completed welds shall be visually examined and tested in the as-welded condition as specified in Table 4. We are a non-profit group that run this website to share documents. The size of a complete penetration T-joint or corner joint butt weld shall be the thickness of the part that butts against the face of the other part. Compression probes shall have a dominant frequency in the range 4 MHz to 5 MHz, and an essentially square or circular transducer in the size range 10 mm to 20 mm.
All reports, including calculations for fracture mechanics assessments of defective welds, shall be retained ztructures made available for information purposes. The transition shall be made by chamfering the thicker part or by sloping the sttructures surfaces, or by any combination of these as shown in Figure 3.
Diver-welders for hyperbaric wet welding Part 2: