Table of Contents

Personnel
Foreword
List of Tables
List of Figures
1. Scope
2. Base Metals
   2.1 General
   2.2 Base-Metal Addition
3. Filler Metals
   3.1 General
   3.2 Low Hydrogen
   3.3 Backing Rings and Consumable Inserts
   3.4 Applications
   3.5 Other Filler Metals
4. Joint Design and Preparation
   4.1 Standard Joint Preparations
   4.2 Root-Pass Considerations
   4.3 Fit-Up
5. Preheating
   5.1 General
   5.2 Interruption of Heating Cycle
   5.3 Moisture and Other Materials Containing
       Hydrogen
   5.4 Joint Restraint
   5.5 Mass of the Base Metal
6. Postweld Heat Treatment (PWHT)
   6.1 General
   6.2 PWHT Temperatures
   6.3 PWHT Holding Time
   6.4 Heating and Cooling
   6.5 Local PWHT
   6.6 Quality Control of PWHT
7. Repair and Maintenance Welding of Service Exposed
   Cr-Mo Piping and Tubing
   7.1 Base-Metal Contamination
   7.2 Temper Embrittlement
   7.3 Relaxation of PWHT Requirements
8. Safe Practices
Annex A - List of Safety Related References
Document List

Abstract

Applicable to the arc welding of the following base-metal combinations: 1. Similar chromium-molybdenum steels 2. Dissimilar chromium-molybdenum steels 3. Chromium-molybdenum to austenitic chromium-nickel stainless steels 4. Chromium-molybdenum to either carbon or carbon-molybdenum steels

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Welding Society
Pages
ISBN