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Author Topic: Stainless steel ?  (Read 2193 times)

Martin [Admin]

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Re: Stainless steel ?
« Reply #25 on: June 19, 2018, 04:45:54 PM »



 {-) {-) {-)  ... Good one!

NB: That was my fist line of thinking, stainless steel, good 'welds', no painting!



      .... i wonder if i could get Russell Hobbs to sponsor the build?!  ( is that a British centric pun?! )
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johnv

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Re: Stainless steel ?
« Reply #26 on: June 21, 2018, 09:18:29 PM »

Hi I was doing a bit of soldering on the kitchen table .The soldering iron slipet and burnt kitchen table .Her indoors is not very happy .I think I am in the bad books cheers John V
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Martin [Admin]

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Re: Stainless steel ?
« Reply #27 on: June 21, 2018, 09:40:59 PM »


Fair warning John!   {:-{
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andrewh

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Re: Stainless steel ?
« Reply #28 on: June 26, 2018, 08:16:03 AM »

Hi, Folks, from upside-down Australia


Martin you started with asking about stainless, and got the replies, Yes, but needs a serious flux.  Serious in this case meaning genuinely dangerous (Hydrofluoric acid).
Stainless protects itself from rust by forming an instant impervious oxide film of nickel and chrome oxides and these prevent solder wetting the steel (sticking).  There are esoteric ways of dislodging the oxide film with fluxes or scratching it off with a glass brush under a film of oil.
I would not plan to go with that


Then the discussion goes into mild and plated carbon steels, and the answer is still yes, and the fluxes are kinder.


Do some hands-on research on the bin you are considering - take a magnet and see if its magnetic.  If it is than its probably one of the Ferritic Stainlesses 430 or similar.  (austenitic stainlesses 304, 310, 316 etc)


Any road up - your idea is great - make a hull or boat in panels and join them like the panels of a stitch and glue hull with epoxy (or car body polyester resin) either resin needs to be filled till it is a a paste that will not slump.


I have rambled - hope something is either use or interesting
andrew
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Martin [Admin]

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Re: Stainless steel ?
« Reply #29 on: June 26, 2018, 10:44:31 AM »


Thanks Andrew,

 I'm going to have a bash with ordinary Plumbers solder and flux first,  see how that goes and take it from there...    :-)
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derekwarner_decoy

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Re: Stainless steel ?
« Reply #30 on: June 26, 2018, 11:52:44 AM »

Andrew ...you may well be correct when mentioning Hydrofluoric acid [HF]....but  >>:-( we need members to keep their fingers attached to their hands

In more common cases, burnt Viton [FPM] Elastomer [from steam engine piston seals]  can produce the same HF

Discussion on HF should really be associated with health & safety....as this acid eats skin...and sometimes cannot be contained by progressive removal surgery  O0

Derek
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Derek Warner

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Martin [Admin]

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Re: Stainless steel ?
« Reply #31 on: June 26, 2018, 06:45:39 PM »


Is this stuff worth a look?

Bernzomatic Lead-Free Wire Solder & Soluble Flux (27758)

https://www.screwfix.com/p/bernzomatic-lead-free-wire-solder-soluble-flux/27758

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derekwarner_decoy

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Re: Stainless steel ?
« Reply #32 on: June 26, 2018, 11:00:48 PM »

No............. %) ............ Derek
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johnv

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Re: Stainless steel ?
« Reply #33 on: June 26, 2018, 11:23:05 PM »

Hi I know you can not solder a wooden kitchen table as I said in my last post burnt oures her in doors is still not happy . Cleaned it up to day with some tops and and polish don't look to bad now cheers John V
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Baldrick

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Re: Stainless steel ?
« Reply #34 on: June 27, 2018, 08:21:29 AM »


I would use some flux cored electricians solder myself  , assuming you are now talking about tinned steel not aluminium.   
It has a low melting point and flows easily. 
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Treble

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Re: Stainless steel ?
« Reply #35 on: July 25, 2018, 01:57:20 PM »

Martin , I have some special stainless steel cored soft solder , approx 1.5 mm diameter.  If you contact me direct , no problem in supplying you a short length . Trevor.
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Martin [Admin]

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Re: Stainless steel ?
« Reply #36 on: July 25, 2018, 04:53:51 PM »


Thank Trevor!
 I'll be in touch.   :-)
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