Choose ONLY the gold over nickel plating under those circumstances, otherwise you will make yourself a stick for own back for a few cents. False economy. Brian Anat Douek wrote: > It is OSP Panel feedthru connector made by MAACOM. > Maacom has two options of the housing bushing plating : > 1. stainless steel type 303 passivated per ASTM A 380 > 2. stainless steel type 303 with gold over nickel plating. > > Since option 1 is chipper we would like to purchase it, but our customer, > who supposed to connect his mating connector, has connector made of > stainless steel type 303 with gold over nickel plating. > I hope it is clear now. > Thank you in advance. > Anat > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Hernefjord Ingemar > Sent: Thursday, January 31, 2008 1:37 PM > To: [log in to unmask] > Subject: Re: [TN] galvanic compatibility > > this gives a different image. Seems like risk for galvanic currents. > However, I'm still confused. > > A connector with passivated stainless steel 303?? What kind? > > And the gold plated connector, what's the body made of? Steel 303? > > Are you talking coaxial SMT SMA connectors or like? If that is the case, you > must have steel-to-steel or gold-to-gold. > > /Inge > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Anat Douek > Sent: den 31 januari 2008 10:45 > To: [log in to unmask] > Subject: Re: [TN] galvanic compatibility > > > Thank you for your response. > It is not double plating. I have one connector with passivated stainless > steel 303 and the mating connector is gold plating. > The question is if it can be joined together, in high humidity level, > without creation of corrosion Anat > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Hernefjord Ingemar > Sent: Thursday, January 31, 2008 10:29 AM > To: [log in to unmask] > Subject: Re: [TN] galvanic compatibility > > Anat, > > why gold on passivated steel? Cosmetic aspect? > Well, if it's a must, gold over steel is possible. > There are lots of products with that finish, e.g. wrist watches. > > Passivation of steel is for protection against corrosion Gold plating is > also for protection against corrosion. > So, you want a double corrosion protection? > > Gold is not corrosive in itself and works as a corrosion protection if the > gold is thick and free from pores. If too thin gold is used, corrosion can > start through pores in the gold plating. > > So, if you happen to have minor contaminations in the steel AND a porous > gold plating, there is a risk of pore corrosion. The steel surface roughness > is also of importance. > > As always, there are some 'it depends'. If you describe the part to be > plated, TN may give you a more precise answer. > > > Inge > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Anat Douek > Sent: den 30 januari 2008 14:37 > To: [log in to unmask] > Subject: [TN] galvanic compatibility > > > Hi, > Is passivated stainless steel 303 can be joined to gold plating, in high > humidity level, without creation of corrosion ? > > Regards, > Anat > > --------------------------------------------------- > 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: 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