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NDE of heavy wall stainless steel cryogenic ASME pressure vessel welds

Conference ·
OSTI ID:106044
; ; ;  [1]
  1. Chicago Bridge and Iron Co., Houston, TX (United States)

This article is a discussion of how changes in the orientation of shell welds in a heavy wall stainless steel pressure vessel impacted the radiography and ultrasonic methods used to volumetrically examine these welds. Particular emphasis is on the fabrication of the ultrasonic calibration block(s) which were made with a replication of the welds to be examined to obtain valid and reliable UT results for this type material. This article also discusses the selection and performance of a video system used for the in-process welding control of the deep narrow gap welds in the 15 1/2 inch (394 mm) thick stainless steel inner vessel shell.

OSTI ID:
106044
Report Number(s):
CONF-950116--; ISBN 0-7918-1298-7
Country of Publication:
United States
Language:
English

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