pipe welding procedures

Pipe Welding Procedures (2nd Edition) by Hoobasar Rampaul

Pipe Welding Procedures (2nd Edition) is an extensive handbook on pipe welding procedures and techniques. The book is authored by Hoobasar Rampaul. The central theme of the manual is to describe the techniques that lead to laying successful pipe welds. The enrich contents of the book meet the requirements of industries like food processing plants, chemical plants, oil refineries, and power plants.

The writer explained various welding procedures along with all common mistakes and reasons for using the recommended procedures. The book consists of instructions on topics like SMAW process, heat parameters, pipe joints, GTAW process, 2G welding, welding metallurgy, welding defects, and welding safety tips.

Pipe Welding Procedures (2nd Edition) by Hoobasar Rampaul

Table of Contents:

1. Introduction

  • Basic Pipe Welding Procedures
  • Pipe Welding Standards and Codes

2. Essentials of Shielded Metal-Arc Welding Technology

3. Heat Input and Distribution

  • Hear Input
  • Heat Distribution

4. Reparation of the Pipe Joint

  • The Keyhole
  • The whipping Technique
  • Stopping the Weld

5. Uphill Welding the Root Bead on Heavy-Wall Pipe (SG Position)

  • The Root Beads
  • General Procedure for Uphill Root Bead Welding
  • The Keyhole
  • Starting the Root Weld
  • Uphill Welding of the Root Bead
  • Vertical Uphill Welding of the Root Bead
  • Flat Welding of the Root Bead
  • The Tie-in Procedure
  • Inspect the Weld
  • Summary of Root Bead Welding

6. Welding the Rood Bead by the Gas Tungsten Arc Welding Process (GTAW)

  • The GTAW Process
  • Equipment
  • Root Bead, Pulse Current, Gas Tungsten Arc welding
  • Caution

7. The Intermediate and Cover Passes

  • Shielded Metal Arc Welding – Electrodes

8. Welding Thin-Wall Pipe

  • Uphill Welding
  • Downhill Welding
  • Welding the Tacks
  • Downhill Pipe Welding (Heavy-wall and Large Diameter)
  • Depositing Root Bead (Heavy-wall Pipe, Large Diameter Pipe)
  • Depositing: The Hot Pipe
  • Filler Passes and Their Sequences
  • Cover Pass

9. Horizontal Pipe Welding (2G)

  • Alloy Steel in High-Temperature Services
  • Welding Steel in Low-Temperature Services (Cryogenic Services)
  • Nickle Steel of the 9% Grade

10. Welding Complicated Pipe Joints

  • Welding Variations for Complicated Pipe Joints
  • Uphill Welding with Pipes in an Angular (6G) Position
  • Full Lateral Joint
  • T-Joint with Intersection on Top
  • T-Joint with Intersection on Bottom
  • Y-Joint
  • Special Precautions

11. Introduction to Welding Metallurgy

  • Properties of Metals
  • Grain Structure
  • Structural Characteristics of Steel
  • The Iron-Carbon Diagram
  • Grain Size
  • Size Change
  • Alloying Elements in Steel
  • Stress Relieving
  • Structure of the Weld
  • Structure of the Weld and Weld Affected Zone
  • Residual Stresses and Distortion in Welds

12. Distortion in Pipe Welding

  • Example 1, 2, 3, 4, 5, 6

13. Pipe Welding Defects

  • Arc Strike Cracking
  • Under-bead Cracking
  • Restraint Cracking
  • Welding Faults and Their Prevention
  • Weld Repair

14. Fitting-UP Pipe

  • Tools Required
  • Pipe to Pipe Fit-up
  • Welding Pipe Parts to Pipe

15. Qualification of the Welding Procedure  and the Welder

  • Qualifying A Procedure
  • Qualifying the Welder
  • Perfect Weld Requirements
  • Bend Tests

16. General Welding Safety

  • Safety Measures
  • Safe Handling of Gas Cylinders
  • Safety Regulations for Oxyacetylene Welding

Thus, Pipe Welding Procedures (2nd Edition) is a unique reference book for welders and craftsmen working in different industries.

Related: Other Important Welding Handbooks

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