AS/NZS Australian/New Zealand Standard. ™. Structural steel welding. Part 1: Welding of steel structures. A. S. /N. ZS AS/NZS Australian/New Zealand Standard™. Structural steel welding. Part 1: Welding of steel structures. Originated in Australia as AS CA8— Join our Senior Welding Engineer Alan McClintock as he brings to attention what to do if using steels not manufactured to AS/NZS
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The ultrasonic sensitivity to be used for parent metal scanning in areas where welds are to be made should comply with ASi. Repaired welds shall be reinspected to the same level as that originally specified.
Each test weld shall have a minimum examination length of mm, be examined visually and by means of a macro test see also Table 4. Where flame-heating methods are applied, the following restrictions shall apply: Gouged areas requiring re-welding shall have a root radius of not less than 5 mm and sufficient width to allow the welder reasonable access to reinstate the weld.
Care should be taken in applying this Table to imported steels as verification tests may be required. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Depth X may range from 2 t? For MMAW 1554.1, the situation is more complex as impact energy requirements for system B classified consumables follows the current AWS practice of defining minimum requirements for each electrode class and composition.
Diver-welders and welding operators for hyperbaric dry welding Licensed to Mr Vijai Moorthy aa 31 March NDE technique and alternatives see Clauses 6. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher, unless otherwise permitted under the Copyright Act Australia or the Copyright Act New Zealand.
Welding and non-destructive examination Non-destructive testing—Magnetic products, components and structures Continuous hot-dip metallic coated steel sheet and strip—Coatings of zinc and zinc alloyed with aluminium and magnesium Steel tubes for mechanical purposes Health and safety nas work—Principles and practices Fine grained, weldable steel plates for pressure equipment The impact properties as determined from these tests shall be not 1554.1 than the minimum specified impact properties for the steel grade under ss.
Due to changes in the welding consumable classifications systems used in Australia and New Zealand, reference should be made to Appendix F for guidance on the extension of weld procedure qualification.
Welding to AS/NZS of Boron Containing Steel
See Appendix D, Item v. The macro test specimen from the welding procedure qualification may need examination for this purpose. Nominal tensile strength of the weld metal. Destructive testing of a prototype joint, structure or component.
The preheat prediction methods given herein are designed to minimize the risk of heataffected zone cold cracking under most fabrication circumstances. The size of an incomplete penetration butt weld shall be the minimum depth to which the weld extends from its face 1554.11 the joint, exclusive of reinforcement.
Australia and New Zealand have generally followed the AWS based system B practice nsz a tensile strength based qs system with local variations including a 47 J minimum impact energy requirement at the temperature of test as the basis for its consumable classification requirements.
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 15541 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 1554.
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. For additional requirements for hollow sections, see Clause 4.
The fabricator shall establish a welding procedure and mzs the applicable parameters in the welding procedure qualification record also known as PQR or WPQRwhich shall be held as a record and shall be available for examination. Structural steel welding Pa.
It should then involve a progressive reduction in frequency of testing, on the basis of achieving compliance with each test.
Equal width rectangular hollow sections Where the end of a rectangular hollow section member is welded to the surface of another rectangular hollow section member of equal width, the welding procedure shall be qualified in accordance with Clause 4.
Transverse guided bend test Method 5. Flux-cored arc welding FCAW. Welding Supervisor all of these tasks will be performed seamlessly and will result in your firm actually saving money owing to lower rework levels. Licensees are permitted to print once for Internal use limited to the Quantity specified in the SAI Global Infostore order only excludes electronic pads of forms.
AS 1554.1 & AS/NZS 1554.1
The rating SP compared with GP concerns weld quality and how it is inspected. Qualification of NDE technicians see Clause 7. The requirements or recommendations contained in published Standards are a consensus of the views az representative interests and also take account of comments received from other sources.
Based on records during the years to as supplied by the National Institute of Water and Atmosphere Research.
AS NZS Welding Structural Steel_图文_百度文库
Except where a greater hardness is permitted qs accordance with Appendix D, Item ithe hardness of weld-heat-affected zones shall be not greater than HV Any steel type from any of the above Standards may be welded to any other steel type from any Standard listed above, provided the requirements of this Standard are met for each of the steels. For gouged preparations, see Clause 5. Shear probes shall have a dominant frequency in the range 2. With the assistance of a 1554.1.
The transition slope between the parts shall be not steeper than 1: These standards are developed through an open process of consultation and consensus, in which all interested parties are invited to participate.
This standard underwent a major revision and was published on 23rd December Where routine testing reveals imperfections requiring further consideration in accordance with Section 6, Clause 6. Care should be taken in applying this Table to imported steels as verification tests may be required. Any coating on the electrodes or filler wires shall be continuous and firmly adherent. It addresses weld defects such as cracks, undersize, undercut and porosity for example.
Standards New Zealand retains title and ownership of nzz copyright in this PDF file and the corresponding Under this license use of both the PDF file and the single permitted printed copy of this PDF file you may make are restricted to you.
Applicability see Legend MMAW SAW — — GMAW X — a b An increase in the diameter of the electrode A change in electrode diameter of more than one step in the sequence of diameters An increase or decrease in wire diameter of more than one step in the sequence of diameters A change of weld preparation shape see Note A change in the shape of any one type of weld preparation more than the tolerance in Clause 5.
In addition, the impact test temperature of the consumables as specified in the relevant Standard for the consumables shall not be warmer than the design service temperature see Paragraph B3, Appendix B. Where welding consumables meet the above requirements and comply nsz one of the following relevant requirements, they shall be deemed nsz and require no qualification testing: There is evidence that weld metal cold cracking is more likely to occur with multi-pass welds in restrained plates over 20 mm thick and where high heat input runs are used i.
See Appendix D, Item j. Although this Standard has been specifically prepared for steel structures, it may be usefully applied to machine frames and other types of steel constructions.