Work Item
ASTM WK70577

Revision of E8/E8M-16a Standard Test Methods for Tension Testing of Metallic Materials

Keywords

None Provided

Rationale

The current E8/E8M section on gauge marking of specimens (7.3) does not explain the reason for gauge marking or when it is required (vs. when its not), and it does not say anything about how and where gauge marks are to be located. Additionally, the wording implies that gauge marking is necessary, which is not the case when elongation-at-fracture is to be determined. The current wording also specifies use of dividers, punches, or layout ink, which need not be used. (For example, tools other than dividers are frequently used to scribe gauge marks.) And finally, the current wording does not refer the reader to the elongation section of the standard, which seems logical and helpful to do. A separate but related need is to revise the reporting statement (7.11.5) within the elongation section, which does not list the method of determination (elong at fracture vs. elong after fracture) as needing to be reported. Such reporting is clearly required by 7.11.1.

Details

Developed by Subcommittee: E28.04

Committee: E28

Staff Manager: Ashley Wiand

Work Item Status

Date Initiated: 11-12-2019

Technical Contact: David Heberling