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The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test measures the depth of penetration of an indenter under a large load (major load) compared to the penetration made by a preload (minor load). [ 1 ]
A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels .
Brinell scale This page was last edited on 16 November 2024, at 12:16 (UTC). Text is available under the Creative Commons Attribution ...
The Rockwell scale; The Durometer scale; The Barcol scale; ... Hardness scales may also refer to: Methods of measuring the deposit formation by hard water.
15N20, L6, and 8670 are steels containing 1-2% nickel, known for great toughness at around Rockwell C 58–60. L6 is popular for swords; 8670 would also be excellent and is easier to find and cheaper. 15N20 (.75% C, 2.0% Ni) is widely used with 1095 to make pattern-welded ("Damascus") steel.
Barcol hardness is measured on a scale from 0 to 100 with the typical range being between 50B and 90B. A measurement of 60B is roughly equivalent to a Shore hardness of 80D or a Rockwell hardness M100. [4] [6] As defined in ASTM D 2583 the scale divisions from 0-100 should each indicate a depth of 0.0076 mm or the equivalent 0.0003 inches. [7]
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There are several scales of durometer, used for materials with different properties. The two most common scales, using slightly different measurement systems, are the ASTM D2240 type A and type D scales. The A scale is for softer ones, while the D scale is for harder ones. The image of Bareiss digital durometer is shown in the photo.