Select a Rockwell
Hardness Tester:
Bench, Portable, Specialized
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The Versitron Rockwell hardness testing system is the workhorse of hardness testing - designed to meet the toughest challenges: clamp large parts, operate in poor environments, and test high volumes - all with less service problems and less operator skill requirements. Available with 4 different test stands types (in a range of sizes) and 2 test heads and also a wide range of other options Go to product page |
INDENTRON®
Rockwell Hardness Tester
A high-accuracy deadweight Rockwell hardness tester that is designed for lab testing. Unique design eliminates
frictional inconsistencies. Even tests inside diameters without fixturing.
Regular, superficial and combination units available to operate in all Rockwell scales in regular and superfficial Rockwell ranges. Available in several capacities
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Low-Cost Digital
Hardness Tester
The ME-2 system is an economical Rockwell hardness tester that is easy to calibrate, rarely requires service and provides good accuracy. Available in analog, basic digital, & advanced digital.
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Jominy Tester For end-quench hardenability testing on Jominy samples - manual positioning fixtures (above) to automatic multi-specimen jominy sytems. |
Hardness Test Blocks, Indenters,
or Anvils
Newage has a complete selection of certified diamond indenters, ball indenters, hardness test blocks including NIST-traceable, Rockwell C scale, and anvils for most models of hardness testers. |
DATAVIEW®
Data Collection Software for Hardness Testing
The only hardness-testing-specific data collection software. DataView is designed for uploading hardness testing data to a PC. Includes special features like scale conversion, minimum thickness and round correction. |
Rockwell Test Method, Part 1
The Rockwell test
method is defined in ASTM E-18
and is the most commonly used hardness test
method since it is generally faster/easier to perform and less operator dependant for accuracy than
other types of
hardness testing. Rockwell hardness testers can be used on all metals
except in conditions where the
test metal structure or surface conditions (roughness, shallow surface hardnening, etc) would
introduce too much variation,
where the
indentations would be too large
for
the application or where the sample size
or shape prohibits its use. For an in-depth education on hardness testing see the ASM website
The test
method measures the permanent depth of indentation produced by a force on an
indenter. First, a preliminary test force (A), also called pre-load or minor
load, is applied to
a sample using a diamond indenter. This is the zero or reference
position that breaks through
the surface to reduce the effects of surface finish.
Then, an additional test force or major load (B)
is applied to reach the total
required test force. This force is held for a predetermined amount of
time to
allow for elastic recovery
of the metal (C). The additional test force is then
released and
the final position (D) is measured
against the preliminary position
and converted to
a Rockwell hardness number.
Rockwell-Scale Hardness Tester Indentations
The
Rockwell test method, Part 2
Here is a complete list of scales for Rockwell hardness testers showing the loads and indenters.
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email: newage.info@ametek.com
© 2008, Newage Testing Instruments, Inc
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