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The Rockwell scale measures the hardness of materials, particularly metals, using a standardized method that involves applying a specific load to an indenter and measuring the depth of penetration. Different Rockwell scales (e.g., A, B, C) are used for various materials, with the C scale commonly applied to harder materials like steel. The scale provides a straightforward numerical value that indicates hardness, where higher numbers correspond to harder materials. Thus, the hardness of a file, which is typically made from high-carbon steel, would be relatively high on the Rockwell scale, often around 60 HRC or more.

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3mo ago

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A very hard tool steel will probably register about 70 on the what scale?

Rockwell C scale


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Approx 37.8 Rockwell "c" scale


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What scale is used to measure the hardness of steel?

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It depends on the type of scale.... rockwell A,B,C..... and the type of diamond used if you have that data, use this chart. http://www.carbidedepot.com/formulas-hardness.htm


When reading the steel heat treatment notation RC what does the R mean?

RC stands for Rockwell Hardness C scale; the different letters A,B,C etc. are based on different loads and indenters for measurement. C scale is typical for steels, while B scale is typical for aluminum. There are conversion tables for these if needed.


What is the hardness of sterling silver on the Rockwell scale?

Sterling silver typically has a hardness of around 40 to 45 HRC on the Rockwell scale.


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Who is the hardness scale named after?

The Mohs scale of mineral hardness is named after Friedrich Mohs, who developed it. The Rockwell scale of metal hardness is named after Hugh and Stanley Rockwell, who created the machine that measures it. Hugh and Stanley Rockwell aren't directly related to each other. The Shore Durometer scale for measuring the hardness of elastomeric materials like rubber is named after Albert Shore, who invented the measuring device called the durometer.


What is the harness of an knife?

Do you mean adjustable shoulder harness, used for carrying a knife under a coat, or did you did mean "hardness", which usually refers to the Rockwell Scale that determines how hard or soft the metal of a blade is.


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If 35 HRC is high on the Rockwell scale or not is quite relative to what you would define as high. A typical axe would rate at around 45-55 HRC, while high quality steel knives would rate at about 55-66 HRC.