Hardness Value HV5 convert to HV10
Hardness Value HV5 convert to HV10
(OP)
Hi Friends,
My spec require hadness value 310 HV10 but The laboratory have been tested at HV5. My client reject this result and require to Re-Test hardness at HV10. I know that HV5 or HV10 is same result. You can share to me some standards or guide books to convert HV5 to HV10. Thanks you so much
My spec require hadness value 310 HV10 but The laboratory have been tested at HV5. My client reject this result and require to Re-Test hardness at HV10. I know that HV5 or HV10 is same result. You can share to me some standards or guide books to convert HV5 to HV10. Thanks you so much





RE: Hardness Value HV5 convert to HV10
http://www.eng-tips.com/threadminder.cfm?pid=1529
Use translation assistance for Engineers forum
Note the rules include No Student posting
RE: Hardness Value HV5 convert to HV10
If spec asks for HV10 measurements, client is correct when they want HV10 results, not converted values from another test method.
As an answer to your question though, there is a certain code that gives (indicative ?) conversion tables.
I'll search to see if I can find the reference or the code, it's been a while since I had anything to do with destructive testing...
RE: Hardness Value HV5 convert to HV10
RE: Hardness Value HV5 convert to HV10
If the part is small or thin you could tell them that they used 5 in order to not exceed recommended loads, otherwise it is a slip up.
Take one piece and have ti retested a number times in both scales and show that the values are the same.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Hardness Value HV5 convert to HV10
The customer is within their rights to enforce their contractual requirements, and your laboratory should have sought a variation in advance before taking it upon themselves to use a different test load. Of course, if you did not inform the laboratory of the contractual requirements, you will have to accept liability for the retests.
It may be possible to retest a small sample using both test loads to verify that the materials are homogenous, and satisfy your customer that the results to date are valid for that product.
RE: Hardness Value HV5 convert to HV10
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
RE: Hardness Value HV5 convert to HV10
Aaron Tanzer
RE: Hardness Value HV5 convert to HV10