Back to the original question about nickel hardness between Ni B and Ni P.

Victor,

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Monday, January 26, 2015 2:02 PM
To: [log in to unmask]
Subject: Re: [TN] Nickel Question

Usually, but not always. Oftentimes a tungsten/nickel/boron finish is electroplated instead of the more common chromium, and when electroplated it is much harder than the electroless plating (it is generally thicker). But this is usually done for mechanical components.

http://www.osti.gov/scitech/biblio/72974-QMzJhC/webviewable/
http://asterionstc.com/tungsten-nickel-boron-electroplating-system/

But I have never heard of electroplated TNB being used as a circuit board finish. I don't think you can solder to it, if that is what you are asking.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Vladimir Igoshev
Sent: Monday, January 26, 2015 6:53 AM
To: [log in to unmask]
Subject: Re: [TN] Nickel Question

Victor,

Ni-B is also electroless

Vladimir

Sent from my BlackBerry 10 smartphone on the Rogers network.
  Original Message
From: Victor Hernandez
Sent: Monday, January 26, 2015 07:49
To: [log in to unmask]
Reply To: TechNet E-Mail Forum
Subject: [TN] Nickel Question

Fellow TechNetters:

Does Ni boron (electroplated process) and Ni Phosphorous (ENIG process) have the same hardness?

Victor,


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