Transcription of Standard Hardness Conversion Tables for Metals ...
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Standard Hardness Conversion Tables for Metals ...
Designation: E 140 07 Standard Hardness Conversion Tables for MetalsRelationship Among Brinell Hardness , Vickers Hardness ,Rockwell Hardness , Superficial Hardness , Knoop Hardness ,and Scleroscope Hardness1 This Standard is issued under the fixed designation E 140; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or Standard has been approved for use by agencies of the Department of Scope* ConversionTable 1presents data in the Rockwell Chardness range on the relationship among Brinell Hardness ,Vickers Hardness , Rockwell Hardness , Rockwell superficialhardness, Knoop Hardness , and Scleroscope Hardness of non-austenitic steels including carbon, alloy, and tool steels in theas-forged, annealed, normalized, and quenched and temperedconditions provided that they are ConversionTable 2presents data in the Rockwell Bhardness range on the relationship among Brinell Hardness ,Vickers Hardness , Rockwell Hardness , Rockwell superficialhardness, Knoop Hardness , and Scleroscope Hardness of non-austeni
(HV) Brinell Hardness NumberC Knoop Hardness, Number 500-gf and Over (HK) Rockwell Hardness Number Rockwell Superficial Hardness Number Sclero-scope Hard-ness NumberD Rock-well C Hardness Number 150 kgf (HRC) 10-mm Standard Ball, 3000-kgf (HBS) 10-mm Carbide Ball, 3000-kgf (HBW) A Scale, 60-kgf (HRA) D Scale, 100-kgf (HRD) 15-N Scale, 15 …
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