Section Nr. Section Title Page © COPYRIGHT 2000 THE ESAB GROUP, INC. LESSON VII TABLE OF CONTENTS LESSON VII FLUX CORED ARC WELDING ELECTRODES FOR CARBON & LOW ALLOY STEELS Part I - Flux Cored Arc Welding Electrodes for Carbon and Low Alloy Steels ............................................................. 1 7.1 INTRODUCTION ................................................................................ 1 7.2 MANUFACTURING FLUX CORED ELECTRODES........................... 1 7.3 FEATURES OF FLUX CORED ELECTRODES ................................. 3 7.3.1 Functions of the Flux Ingredients ........................................................ 3 7.3.2 Slag Systems ...................................................................................... 4 7.4 GAS SHIELDED TYPES .................................................................. 4 7.4.1 Joint Design ...................................................................................... 4 7.4.2 Shielding Gas ................................................................................... 6 7.4.3 Electrode Extension .......................................................................... 7 7.4.4 All-Position Electrodes ...................................................................... 7 7.4.5 Mild Steel Electrodes ........................................................................ 7 7.4.6 Low Alloy Electrodes ......................................................................... 7 7.5 SELF-SHIELDED ELECTRODES .................................................... 7 7.5.1 Electrode Extension .......................................................................... 8 7.5.2 All-Position Electrodes ...................................................................... 8 7.5.3 High Deposition Types ...................................................................... 8 7.6 AWS SPECIFICATION A5.20-95 ...................................................... 9 7.6.1 Tensile Strength and Elongation ....................................................... 9 7.6.2 Usability and Performance................................................................ 10 7.6.3 Chemical Composition Requirements  .............................................. 10 7.7 INDIVIDUAL ELECTRODE CHARACTERISTICS ........................... 11 7.7.1 EXXT-1 & EXXT-1M .......................................................................... 11 7.7.2 EXXT-2 ............................................................................................. 12





Lesson 1
The Basics of Arc Welding
Lesson 2
Common Electric
Arc Welding Processes
Lesson 3
Covered Electrodes for Welding
Mild Steels
Lesson 4
Covered Electrodes for Welding Low Alloy Steels
Lesson 5
Welding Filler Metals for Stainless Steels
Lesson 6
Carbon & Low Alloy
Steel Filler Metals -
GMAW,GTAW,SAW
Lesson 7
Flux Cored Arc Electrodes Carbon Low Alloy Steels
Lesson 8
Hardsurfacing Electrodes
Lesson 9
Estimating & Comparing Weld Metal Costs
Lesson 10
Reliability of Welding Filler Metals
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