Ultrasonic examination of the heavy section test blocks for hydroprocessing reactors used by the petroleum industry
- WesDyne International, Inc., Concord, CA (United States)
- Chevron Research and Technology Co., Richmond, CA (United States)
An 18-inch (457 mm) thick Cr-Mo steel test block with an austenitic stainless steel ID cladding was designed and fabricated at the direction of the Material Properties Council in cooperation with the Pressure Vessel Research Committee (PVRC) Committee on Nondestructive Examination of Components. The test block contains several embedded flaws located near both ID and OD surfaces. Chevron Research and Technology Company and WesDyne International conducted the initial UT Examinations on this block at Chevron. In addition, a 10-inch (254 mm) thick block with embedded flaws was also examined. All the flaws m the two blocks were either cracks or lack of fusion. The examination results demonstrate the feasibility of UT to detect and size flaws in hydroprocessing reactor vessels and provide a basis to compare the relative capabilities of UT with the radiographic (RT) inspections currently required by the fabrication code.
- OSTI ID:
- 136785
- Report Number(s):
- CONF-950740--; ISBN 0-7918-1344-4
- Country of Publication:
- United States
- Language:
- English
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