Newage Testing Instruments Logo Contact Us 
Search


Home
AMETEK Logo
Application information from Newage Testing Instruments
Path: Home>Applications>Selecting A Hardness Tester>Selecting a Hardness Tester
Hardness Testing Applications
Selecting A Hardness Tester
Considerations for Selecting a Hardness Tester
Selecting a Rockwell Hardness Tester
Selecting a Brinell Hardness Tester
Selecting a Microhardness Tester for Knoop & Vickers
Selecting a Microhardness Tester for Case Depth

Considerations for Selecting a Hardness Tester
When selecting a hardness tester for your application, it is important for you to consider the following:

Choose the correct test method based on the application.
Plan to use the highest test force and largest indenter possible. Consider the effects of the shape and dimensions of your test sample.

Answer these key questions:
1.   Does your test prescribe a specific hardness scale to be used? 
2. 
  What is the material to be tested, and is this material suitable to the type of test method you are considering?
3.   How large is the part, component or specimen to be tested?
4.   Is the test point difficult to reach?
5.   What is the volume of testing that will be done?
6.   How accurate does your test result need to be?
7.   What is your budget?
8.
  What is the required return on investment and do you have ways to measure reductions in costs- yields, throughput, operator efficiency?
9. What testing problems have you experienced in your current method?
10. How knowledgeable are the users of the tester?

Verify the test results meet your requirements for accuracy and repeatability.
Consider performing a Gage R&R to gather quantifiable data on how much error is attributed to the operator and the measurement system employed.

There are significant differences between levels of performance within each classification of tester. A difficult job on one tester could be very simple and fast on another. So, although hardness testers within a test method and classification look alike, there are many features that can significantly affect productivity and accuracy. A good example of features affecting performance is demonstrated in bench Rockwell hardness testing systems. All can handle moderately long parts using larger anvils or jack rests, however the VERSITRON Series can usually test large parts more quickly and accurately, when compared to other bench testers, which require external support stands or fixtures. The INDENTRON Series, on the other hand, is much easier to use on small, awkward parts.


 Test Type

 Test Method

 Test Force Range

 Indenter Type

 ASTM Reference

 Measure Method 

 Rockwell

 Regular

 60, 100, 140 kgf

 Conical Diamond & Small Ball

 E 18

 Depth

 Rockwell

 Superficial

 15, 30, 45 kgf

 Conical Diamond & Small Ball

 E 18

 Depth

 Rockwell

 Light Load

 3, 5, 7 kgf

 Truncated Cone Diamond

 Informal

 Depth

 Rockwell

 Micro

 500, 100 gf

 Small Truncated Cone Diamond

 Informal

 Depth

 Rockwell

 Macro

 500 to 3000 kgf

 5, 10mm Ball

 E103

 Depth


 Microhardness

 Vickers

 5 to 2000 gf

 136° Pyramid Diamond

 E 384

 Area

 Microhardness

 Knoop

 5 to 2000 gf

 130° x 172° Diamond

 E 384

 Area

 Microhardness

 Rockwell

 500, 3000 gf

 Truncated Cone Diamond

 Informal

 Depth

 Microhardness

 Dynamic

 0.02 to 200 gf

 Triangular Diamond

 Informal

 Depth


 Brinell

 Optical

 500 to 3000 kgf

 5, 10mm Ball

 E 10

 Area

 Brinell

 Depth

 500 to 3000 kgf

 5, 10mm Ball

 E103

 Depth


 Durometer

 Regular

 822 gf (A)
 4550 gf (D)

 35° Cone (A)30° Cone (D)

 D2240

 Depth

 Durometer

 Micro

 257 gf (A)
 1135 gf (D)

 35° Cone (A)30° Cone (D)

 Informal

 Depth


 IRHD

 Regular

 597 gf

 2.5mm Ball

 D1415

 Depth

 IRHD

 Micro

 15.7 gf

 0.395mm Ball

 D1415

 Depth

about newage - productsapplicationsserviceswhere to buyresourcesnews - contact us
©Copyright 2010 AMETEK, Inc. All Right Reserved
personal data policy - privacy policy - trademarkssitemap