Report

L51605 The Use of Flattened Specimens to Measure the Charpy V-Notch Impact Properties of Thin-Wall Pipe

Abstract

API Specification 5L, Supplemental Requirement SR5, 37th Edition, requires that Charpy V-notch (CVN) impact properties of pipe from which full size (0.394 x 0.394 inch) transverse specimens cannot be obtained, because of wall-thickness/pipe-diameter limitations, be measured with unflattened 2/3 size (0.263 x 0.394 inch) or l/2-size (0.195 x 0.394) transverse specimens. Since the use of subsize specimens is known to introduce significant problems in measuring transition temperature interest has been expressed in the possibility of measuring CVN impact properties with flattened specimens to maximize specimen thickness, i.e., use full wall thickness, when subsize specimens are necessary. The present study was undertaken to examine the merit of this approach.

This work was done under the NG-18 workgroup, report 182.

Digital Access

After purchase, you will receive a download link to the report you purchased. Please confirm the email address you use to purchase the report is the email address you would like to receive the report.

If you have any trouble receiving the download instructions, please first check any spam or junk folders. Reach out to support if you need further assistance.