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ISO 13847:2013 specifies requirements, for the petroleum, petrochemical and natural gas industries, for producing and inspecting girth, branch and fillet welds in the pipeline part of pipeline transportation systems which meet the requirements of ISO 13623:2009 or equivalent. ISO 13847:2013 is applicable to the requirements for welding of carbon and low-alloy steel pipes, and includes guidance for the welding of corrosion-resistant alloy (CRA) and CRA-clad pipelines in Annex A. Application is restricted to pipes with a diameter of 20 mm or more and a wall thickness of 3 mm or more, a specified minimum yield strength of 555 MPa or less, and which are designed not to exceed permissible equivalent stresses as defined in ISO 13623:2009 or equivalent. It is also applicable to welding into pipelines of items such as spools, risers, launchers/receivers, fittings, flanges and pup pieces to pipeline valves. Guidance for special welding applications is provided in:. Annex B for hyperbaric welding;. Annex C for brazing and aluminothermic welding of anode leads;. Annex D for branch and fillet welding on in-service pipelines. The welding processes covered are shielded metal arc welding (SMAW),

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Author

ISO/TC 67/SC 2 Pipeline transportation systems

Publisher

ISO

Published

2013

Language

EN

Category

reference