AWS D10.6 : 1991

Personnel
Foreword
1 Scope
2 Basic information
2.1 Absorption
2.2 Reactions
3 Welding process
4 Power sources
5 Tungsten electrodes
6 Titanium grades
7 Filler metals
7.1 Filler metal classification
7.2 Welding rod size
7.3 Filler metal application
8 Joint design
9 Joint preparation
10 Pickling and cleaning
10.1 Pickling procedure
10.2 Other cleaning procedures
11 Fitting and tacking
11.1 Accuracy
11.2 Clamping
11.3 Tack welding
12 Preweld cleaning
12.1 Joints
12.2 Filler metal
13 Gas shielding
13.1 Gas used
13.2 Gas distribution
13.3 Trailing shield
13.4 Gas nozzles
13.5 Root shielding
13.6 Torch shielding gas and purge test
13.7 Chamber welding
14 Welding procedures and technique
14.1 Welding conditions
14.2 Typical welding settings
14.3 Technique
15 Preheat and postweld heat treatment
15.1 Preheat
15.2 Postweld heat treatment
16 Weld quality tests
16.1 Bend testing
16.2 Hardness testing
16.3 Radiographic examination
16.4 Color
16.5 Other tests
17 Safety and health
List of piping and tubing documents
Tables
1 Chemical composition of base metal
2 Tensile strength requirements for base metal
3 Chemical composition of titanium filler metal
4 Time of purge prior to welding (for six volumes
      displacement)
5 Typical conditions for manual gas tungsten arc
      welding of titanium pipe
6 Bend diameters for testing specimens
7 Significance of weld color and remedies indicated
Figures
1 Titanium pipe joint designs
2 Gas purging and assembly clamping device
3 Trailing shield for circumferential welds when the
      pipe is rotated
4 Torch trailing shield
5 Puddle test for torch shielding gas and back purge

A summary of information on the welding of titanium pipe collected from welding literature and various company shops and laboratories to serve as a guide.