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  2. Rockwell hardness test - Wikipedia

    en.wikipedia.org/wiki/Rockwell_hardness_test

    The Rockwell hardness test is a hardness test based on indentation hardness of a material. ... § The Rockwell number precedes the scale abbreviations (e.g., 60 HRC), ...

  3. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    60-776 590: 727: 59-770 576: 694: 57-763 ... "Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness ...

  4. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

    This page was last edited on 16 November 2024, at 12:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  5. List of blade materials - Wikipedia

    en.wikipedia.org/wiki/List_of_blade_materials

    The Rockwell scale is a hardness scale based on the resistance to indentation a material has. ... known for great toughness at around Rockwell C 58–60. L6 is ...

  6. High-speed steel - Wikipedia

    en.wikipedia.org/wiki/High-speed_steel

    The addition of cobalt increases heat resistance, and can give a hardness up to 70 Rockwell C. [14] M35 M35 is similar to M2, but with 5% cobalt added. M35 is also known as Cobalt Steel, HSSE or HSS-E. It will cut faster and last longer than M2. [15] M42 M42 is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. [14]

  7. Talk:Rockwell hardness test - Wikipedia

    en.wikipedia.org/wiki/Talk:Rockwell_hardness_test

    For example, 57 is approximately 60, suggesting not much actual difference. True? Also a benchmark in Moh's hardness is a file, what's that in Rockwell? And glass? Any brittleness limitations should be mentioned. And rubber? Remember the def given repeatedly is: "The Rockwell scale is a hardness scale based on the indentation hardness of a ...

  8. John Magaro Knows That Honesty Is His Greatest Weapon - AOL

    www.aol.com/john-magaro-knows-honesty-greatest...

    The Past Lives actor's new film, September 5, is a journalistic thriller with Oscars-level aspirations. More importantly, it finally grants the 41-year-old actor his time in the spotlight.

  9. Hardness - Wikipedia

    en.wikipedia.org/wiki/Hardness

    When testing coatings, scratch hardness refers to the force necessary to cut through the film to the substrate. The most common test is Mohs scale, which is used in mineralogy. One tool to make this measurement is the sclerometer. Another tool used to make these tests is the pocket hardness tester. This tool consists of a scale arm with ...