Metal Delivery

how to convert Rockwell hardness to n/m2?

How to convert Rockwell hardness values into n/m2 ?

The following table is very useful (N/m2 is a bit too large of a number. What they use is N/mm2)

Hardness Conversion Table

http://www.engineershandbook.com/Tables/hardness.htm

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You may also study these:

(((( There are several alternative scales, the most commonly used being the "B" and "C" scales. Both express hardness as an arbitrary dimensionless number ))))

The Rockwell scale is a hardness scale based on the indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload. There are different scales, denoted by a single letter, that use different loads or indenters. The result is a dimensionless number noted as HRA, where A is the scale letter.

When testing metals, indentation hardness correlates linearly with tensile strength. This important relation permits economically important nondestructive testing of bulk metal deliveries with lightweight, even portable equipment, such as hand-held Rockwell hardness testers.
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(((( There are several alternative scales, the most commonly used being the "B" and "C" scales. Both express hardness as an arbitrary dimensionless number ))))

http://en.wikipedia.org/wiki/Rockwell_scale

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Hardness Conversion Chart

http://www.carbidedepot.com/formulas-hardness.htm

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Brinell and Rockwell Hardness Conversion Chart

http://www.engineersedge.com/hardness_conversion.htm

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Hardness Conversion Table

http://www.corrosionsource.com/FreeContent/1/Hardness+Conversion+Table

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