WELDING PRESSURE PIPELINES & PIPING SYSTEMS - Procedures and Techniques

Table of Contents :- 
Introduction
Vertical Down vs. Vertical Up
Cross Country Pipeline-Vertical Down Welding

• Joint Preparation
• Pipe End Cleaning
• Welding the Root Pass
• Current Settings w/Lincoln Engine Driven Welders
• Root Pass Welding
• Root Pass Troubleshooting
• Techniques for Welding Hot Pass
• Preventing Cracking
• Techniques for X60 etc
• Vertical Down Procedures
• Electrode Consumption
• Thin Wall Pipe Welding Procedures
• Double Ending
• Flux & Electrode Selection

API Pipe Steel
Consumables for Welding Pipe

• Consumables for High Strength Pipe
• Consumables for SMAW
• Consumables for FCAW
• Consumables for GMAW

Pipe Welding Electrodes

• Mechanical Properties

In-Plant Pipe

• Pipe Axis - Horizontal & Vertical
• Vertical Up Welding
• Vertical Up Electrode Consumption
• ASTM Pipe Steels

Introduction

This booklet is a guide to welding pipe with Shielded Metal Arc Welding (SMAW) and double ending pipe using automatic welding. Lincoln Electric supplies electrodes, power sources, automatic and
semiautomatic wire feeders, submerged arc wire and flux, which are the industry standards for pipeline construction around the world. Semiautomatic, self-shielded flux-cored Innershield® Process is being used around the world to produce high quality, low hydrogen, reliable, lower cost pipeline welds.

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