文档介绍：Designation: E 140 – 05 e 1 Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Super?cial Hardness, Knoop Hardness, and Scleroscope Hardness 1 This standard is issued under the ?xed designation E 140; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. e 1 N OTE —The layout of Table 2 was editorially corrected in August 2005. 1. Scope* Conversion Table 1 presents data in the Rockwell C hardness range on the relationship among Brinell hardness, Vickers hardness, Rockwell hardness, Rockwell super?cial hardness, Knoop hardness, and Scleroscope hardness of non- austenitic steels including carbon, alloy, and tool steels in the as-forged, annealed, normalized, and quenched and tempered conditions provided that they are homogeneous. Conversion Table 2 presents data in the Rockwell B hardness range on the relationship among Brinell hardness, Vickers hardness, Rockwell hardness, Rockwell super?cial hardness, Knoop hardness, and Scleroscope hardness of non- austenitic steels including carbon, alloy, and tool steels in the as-forged, annealed, normalized, and quenched and tempered conditions provided that they are homogeneous. Conversion Table 3 presents data on the relationship among Brinell hardness, Vickers hardness, Rockwell hardness, Rockwell super?cial hardness, and Knoop hardness of nickel and high-nickel alloys (nickel content over 50 %). These hardness conversion relationships are intended to apply par- ticularly to the following: nickel-aluminum-silicon specimens ?nished mercial mill standards for hardness testing, covering the entire range of these alloys fr