Designation: E140 – 07
Standard Hardness Conversion Tables for Metals
Relationship Among Brinell Hardness, Vickers Hardness,
Rockwell Hardness, Superficial Hardness, Knoop Hardness,
and Scleroscope Hardness1
This standard is issued under the fixed designation...
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Designation: E140 – 07
Standard Hardness Conversion Tables for Metals
Relationship Among Brinell Hardness, Vickers Hardness,
Rockwell Hardness, Superficial Hardness, Knoop Hardness,
and Scleroscope Hardness1
This standard is issued under the fixed designation E140; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1.
Scope*
1.
1 Conversion Table 1 presents data in the Rockwell C
hardness range on the relationship among Brinell hardness,
Vickers hardness, Rockwell hardness, Rockwell superficial
hardness, Knoop hardness, and Scleroscope hardness of nonaustenitic steels including carbon, alloy, and tool steels in the
as-forged, annealed, normalized, and quen
Less
