Specifications - City of Montpelier, Vermont

Montpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Title:APPENDIX A – Welding and Testing RequirementsPage #:4 of 224.3 Ring or saddle reinforcements, doublers, lugs, etc., shall be made from materialhaving the same general chemical composition as the pipe, headers, or nozzlesto which they will be joined, unless otherwise specified or unless prior writtenrelease is obtained from the ENGINEER.5.0 WELDING PROCESSESShielded Metal Arc Welding (SMAW) is the welding process to be used for the fielderection of piping systems covered by this Specification. Gas Metal Arc Welding(GMAW) may be used for shop fabrication.6.0 FILLER METALS6.1 General:6.1.1 All filler metals shall be fully identified by the ASME Specification numberand the AWS classification number whenever referenced in a document.6.1.2 When the filler metals are referenced in welding proceduresspecifications, procedure qualification records, or the record of welderqualification tests, the filler metals shall also be identified by theappropriate ASME group number (F-number) and weld metal analysisnumber (A-number).6.1.3 Filler Metal Storage and Handling:6.1.3.1 Filler metal storage and handling procedures shall be required tomaintain the material in a clean and dry condition up to the timeof use.6.1.3.2 Low hydrogen electrodes shall be handled and stored inaccordance with the manufacturer's recommendations to avoidmoisture pickup and to retain the low hydrogen characteristics ofthe electrode.6.1.3.3 The methods to be used for handling and storing electrodes shallbe covered in the welding procedure (See Paragraph 7.2.3) orshall be submitted separately.6.2 Filler metals for use with carbon steel base materials:6.2.1 The filler metals used for SMAW shall conform to ASME Specification forMild Steel Covered Arc Welding Electrodes, SFA-5.1, AWS ClassificationE7018, E6010, & E7010.6.3 Certification:The erection CONTRACTOR shall submit to the ENGINEER for review andrelease a Certification of Compliance from the electrode manufacturer statingthat the product provided meets the requirements of the Specification andclassification for which it was purchased.7.0 WELDING PROCEDURES7.1 Welding procedures specifically covering all erection welds to be made shall besubmitted to the ENGINEER for review and release before welding isinitiated.7.2 The submitted welding procedures shall be prepared in sufficient detail to ensurethat the following items, as a minimum, are included and clearly described:APPENDIX APage A4