Image:Pipe root weld with HAZ.jpg

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Summary

Partial weld around a pipe joint with clear heat affected zone. This is ASME SA106 Grade B steel pipe NPS 2.5 SCH 80 with J-grooved prepared ends. An automated TIG orbital welder made half an orbit before aborting. The heat affected zone is clearly visible because of the polished ends, even though it is generally inoccuous in this material. (SA106 Grade B) Photo by Yannick Trottier, 2006.

Licensing

I, the author of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled " GNU Free Documentation License".

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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified image.

Camera manufacturer Canon
Camera model Canon PowerShot A620
Orientation Normal
Horizontal resolution 180 dpi
Vertical resolution 180 dpi
File change date and time 17:38, 31 January 2006
Y and C positioning 1
Exposure time 1/8 sec (0.125)
F-number f/2.8
Exif version 2.2
Date and time of data generation 17:38, 31 January 2006
Date and time of digitizing 17:38, 31 January 2006
Image compression mode 3
Shutter speed 3
Aperture 2.96875
Exposure bias 0
Maximum land aperture 2.96875
Metering mode Pattern
Flash 80
Lens focal length 7.3 mm
Colour space sRGB
Focal plane X resolution 10816.9014085
Focal plane Y resolution 10816.9014085
Focal plane resolution unit inches
Sensing method One-chip colour area sensor
Custom image processing Normal process
Exposure mode Auto exposure
White Balance Auto white balance
Digital zoom ratio 1
Scene capture type Standard
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