Work Item
ASTM WK93818
Revision of E140-12B(2019)e1 Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness
Rationale
These proposed changes clarify E140 section 7 and harmonize terms throughout the document.
These changes to E140 Section 7 were proposed during subcommittee discussion of a prior E92 ballot and are intended to be appropriate to propagate into E92, E10, and E18 when those documents are next revised.
Work Item Status
Date Initiated: 02-10-2025
Technical Contact: Susan Marvin
Item: 005
Ballot: E28 (25-04)
Status: Will Reballot Item