Cleaning up steel after silver soldering

Cleaning up steel after silver soldering

This topic has 4 replies, 4 voices, and was last updated 17 March 2018 at 16:52 by JasonB.

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17 March 2018 at 14:25 #346476
Peter Simpson 1
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@petersimpson1
I have fabricated the cross stays for my 5" gauge BR Standard Class 2 loco. Having silver soldered one of them, what is the best method to clean the steel up prior to priming them ? Is there any way of pickling them ?
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17 March 2018 at 14:25 #9139
Peter Simpson 1
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@petersimpson1
17 March 2018 at 15:41 #346484
Roderick Jenkins
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@roderickjenkins93242
Following advice from JasonB, I've just pickled a steel fabrication in neat brick cleaner. Worked very well, it removed the flux residue and black oxide.

Rod
17 March 2018 at 15:44 #346485
Tim Stevens
Participant
@timstevens64731
The most often recommended solution for this is Citric Acid – which you buy as a powder and dissolve in water. It is relatively harmless to life, so not nasty to use. A search on the web will find supplies, and advice about concentrations, temperature, etc.

Hope this is a start to an answer – Tim
17 March 2018 at 16:52 #346492
JasonB
Moderator
@jasonb
Citric if you have all weekend to make one part, Brick Cleaner if you want to get on with the job as it only needs about 1/2hr in the acid and is also far more effective at removing Tenacity and HT5 flux than the citric.
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