AWS D10.14M/D10.14

The scope of this document is multipass, orbital machine pipegroove welding of pipe by arc fusion processes with filler metaladdition. The orbital machines described in this document aretypically used to weld pipe in plants, such as power generationplants or chemical processing plants, and to weld transmissionpipelines, both cross-country and offshore. Offshore pipelineconstruction includes “S-lay,” “J-lay,” and “Reel-lay.” Each ofthese will be described in further detail. This guide is organizedinto sections describing welding processes, pipe beveling, pipeline-up, weld heads, nondestructive examination, plant pipewelding, cross-country welding, “S-lay” welding, “J-lay” welding,and finally reel lay welding. The guide concludes with a briefdescription of methods used to estimate consumable usage,engineering critical assessments, methods to calculate maximumrepair lengths, and safety.

This document excludes orbital tube welding, which is addressedby AWS D18.1, Specification for Welding of Austenitic StainlessSteel Tube and Pipe Systems in Sanitary (Hygienic)Applications.

This document presents an overview of multipass orbital machinepipe groove welding including the welding processes, pipe bevelingequipment, pipe line-up equipment, welding equipment, andnondestructive examination equipment. This document includes thesteps required to prepare for and use multipass, orbital machinepipe groove welding equipment.

The alternative to multipass orbital machine pipe groove weldingis manual welding, which includes welding with a torch, gun, orelectrode held and manipulated by hand. Orbital machine welding isa form of mechanized welding which offers an alternative to manualwelding when the investment in mobilization and equipment costs canbe offset by productivity gains. The goal of this guide is tofamiliarize the reader with the orbital machine alternative tomanual welding.

This standard makes use of both the International System ofUnits and U.S. Customary Units. The latter are shown withinbrackets ([ ]) or in appropriate columns in tables and figures. Themeasurements may not be exact equivalents; therefore, each systemmust be used independently.

Safety and health issues and concerns are beyond the scope ofthis standard and therefore are not fully addressed herein. Safetyand health information is available from other sources, including,but not limited to, ANSI Z49.1, Safety in Welding, Cutting, andAllied Processes, AWS Safety and Health Fact Sheets(see Annex B) and applicable federal and state regulations.

Edition:

1

Published:

01/01/2010

ANSI:

ANSI Approved

Number of Pages:

78

File Size:

1 file , 7.1 MB