It is a hardness measurement that is typically done using a Vickers
hardness tester. The Hv number is the Vickers Pyramid number. In this
case the test is on nickel or nickel-aluminum based material, which I
assume is the nickel plating.
A good reference for the test is ASTM E92. You should verify the load
required, ie, the measurement requirement should be stated as Ni 450Hv
30, which is my guess at the proper load for a nickel finish in the 450
Hv range.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Harris Dy
Sent: Monday, May 04, 2009 4:08 PM
To: [log in to unmask]
Subject: [TN] Plating Hardness of Ni 450Hv or more

Hi,

I encountered a requirement from customer drawing saying "Plating
Hardness to be Ni 450Hv or more". Is this a standard on most of the PCB
shops? If not, please advise what in your opinion is the standard
parameter.

Thanks,
Harris




---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at:
http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------
      

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------