Document: NRC Regulatory Guide
Document ID: 55b1f520-7682-43fa-a5c3-254f661dcc82
Document Type: regulatory_guide
Title: Nondestructive Examination of Tubular Products
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1306/ML13064A108.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.66
CFR Part: 
CFR Title: 

Content:
amination method to be used for each 'Copies may be obtained from the American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, New York 10017. product form. Instead, the code simply states that the products shall be examined by one of several methods listed. The requirements for the specific examination methods mentioned in NB-2550 lack detail and need supplementing. In practice, examination procedures which conform to these requirements have permitted defects of unacceptable size in tubular products to go undetected because the defects were unfavorably oriented for the examination procedure applied. To assure adequate control of quality for the products listed above, supplementary requirements have been incorporated in this guide which include the identification of specific examination methods to be used for each product form and additional requirements for specific examination methods when appropriate. Ultrasonic Examination of Pipe and Tubing. Pipe and tubing should be examined by the ultrasonic method using the angle beam technique in both the axial and circumferential directions. The ASME Code requirements in NB-2550 supplemented by ASTM E-213, "Standard Method for Ultrasonic Inspection of Metal Pipe and Tubing for Longitudinal Discontinuities,"2 provide a suitable basis for detecting axial defects. However, no consensus standard exists fbi the detection of circumferential defects (found in pipe manufactured by processes such as extrusion, swaging. and tube reducing). Therefore, supplementary requirements for this purpose are included in this guide. The acceptance criteria for ultrasonic examination are based on a comparison of ultrasonic indications reflected from discontinuities in the product with indications from standard defects in a referenue 2Copies may be obtained from American Society for Testing and Materials, 1916 Race Street, Philadelphiai. Pennsylvania 19103. USAEC REGULATORY GUIDES Copies of published