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Author Topic: Stainless steel ?  (Read 6445 times)

Martin (Admin)

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Stainless steel ?
« on: June 17, 2018, 03:02:19 am »


Question: Can you soft solder thin stainless steel?
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Baldrick

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Re: Stainless steel
« Reply #1 on: June 17, 2018, 03:24:34 am »

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derekwarner

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Re: Stainless steel
« Reply #2 on: June 17, 2018, 03:41:24 am »

Baldrick.......all of the words suggest YES, however they do not qualify joint thicknesses or lengths

Our member Hammer or RGY has just soft soldered a carbon [galvanised?] steel plated hull...I would be interested to hear his thoughts {:-{ on soft soldering a 316 Grade plated hull
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Baldrick

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Re: Stainless steel
« Reply #3 on: June 17, 2018, 09:50:25 am »

Baldrick.......all of the words suggest YES, however they do not qualify joint thicknesses or lengths

Our member Hammer or RGY has just soft soldered a carbon [galvanised?] steel plated hull...I would be interested to hear his thoughts {:-{ on soft soldering a 316 Grade plated hull


  If the plates are galvanised it means they are zinc coated and zinc is very easy to solder . Watering cans have been made of the stuff since time immemorial with soldered seams. Best way is to lap seam, tin both mating faces and then run a hot iron down feeding some electricians solder in using capillary attraction.
 Perhaps our member used old baked bean tins for his plates which are tin coated (unless they are the aluminium ones). Tin of course is one of the constituent elements of solder so easy to work .
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Martin (Admin)

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Re: Stainless steel
« Reply #4 on: June 17, 2018, 10:18:57 am »

 
Found this on Utube .... Hmmmm, not the best craftsmanship I've even seen...


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johnv

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Re: Stainless steel
« Reply #5 on: June 17, 2018, 10:53:16 am »

Hi Martin it would be better to get a new one .He made a good old mess of that cheers John V
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Baldrick

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Re: Stainless steel
« Reply #6 on: June 17, 2018, 12:03:48 pm »




  Made a grand job of that ! for a numpty.
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steamboat66

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Re: Stainless steel
« Reply #7 on: June 17, 2018, 01:26:13 pm »

it CAN be soldered, but the flux required is quite aggressive, and likely therefore quite toxic. so it may be better to use good epoxy.
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Martin (Admin)

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Re: Stainless steel
« Reply #8 on: June 17, 2018, 02:00:54 pm »


I was thinking of using a stainless steel bin to make a hull but I'm starting to think it may require too much heat to easily make the joints,
I want to use a iron as opposed to a torch / blowlamp...

...  Gallon tins maybe?!




http://www.argos.co.uk/product/8406950

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nemesis

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Re: Stainless steel
« Reply #9 on: June 17, 2018, 02:06:32 pm »

It depends on the grade of "stainless steel" I used high grade for orthodontic appliances and nothing worked except spot welding. Nemesis
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Mark T

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Re: Stainless steel
« Reply #10 on: June 17, 2018, 02:10:48 pm »

Martin give the lads at cup alloys a call and they will advise you of the best flux to use.  I found them to be brilliant when I needed to solder stainless to brass  :-))

Martin (Admin)

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Re: Stainless steel
« Reply #11 on: June 17, 2018, 02:36:36 pm »

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ajb63

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Re: Stainless steel ?
« Reply #12 on: June 17, 2018, 06:00:49 pm »

You can use Eutectic flux 157 for soft soldering stainless steels. It is acid based and very aggressive , but very efficient and flows well.
Alan
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Martin (Admin)

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Re: Stainless steel ?
« Reply #13 on: June 17, 2018, 06:23:06 pm »


I Think I'll experiment with a couple of 5L tins to start with.
 What can you buy that's cheap but still come in steel cans?
 




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Colin Bishop

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Re: Stainless steel ?
« Reply #14 on: June 17, 2018, 07:02:26 pm »

Just out of interest Martin, what has prompted you to think about soldering a model together rather than employ more conventional building methods?
Colin
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Re: Stainless steel ?
« Reply #15 on: June 17, 2018, 07:19:26 pm »


I saw a miniature dustbin outside my superbuy cheapey shop this afternoon and as it is just galvanised steel, it might get you an easy solder 'Hull'??


I am sure you have a similar shop in town that stacks stacker boxes and bins etc outside and should therefore have a small bin.


You might be able to make an old fashioned soldering iron from a brass electric plug pin filed to shape and screwed via the convenient hole to an old BBQ implement handle or similar. Heat it with a blow lamp so keeping better control of your heat placement.


It might take some practice to use??
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Neil

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Re: Stainless steel ?
« Reply #16 on: June 17, 2018, 07:43:08 pm »

with a propane torch like he was using, he would have been better using soft melt silver solder and a powder flux liquified with water.
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Martin (Admin)

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Re: Stainless steel ?
« Reply #17 on: June 17, 2018, 09:44:40 pm »

Just out of interest Martin, what has prompted you to think about soldering a model together rather than employ more conventional building methods?
Colin

A real boat is usually made of steel... and then my mind when dancing through the daisies.... !


            Also, I've seen a couple of real nice metal made model boats over the years.
 
 
 
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Baldrick

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Re: Stainless steel ?
« Reply #18 on: June 17, 2018, 09:54:08 pm »




 What is wrong with these 2.62 Kg catering size baked bean tins ? There are lots of ways you can spice up the contents if appetite starts to flag before you get to the bottom
http://www.devinequalityfoods.co.uk/heinz-baked-beans
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Martin (Admin)

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Re: Stainless steel ?
« Reply #19 on: June 19, 2018, 12:52:38 pm »


Still musing over this idea...

Watched a UTube video by the very prolific Keith Appleton:   https://youtu.be/vCPwPngOS0o



Two things:

1. I hadn't thought of bonding the hull plates with J-B Weld, maybe with additional rivets.


2. Didn't know J-B Weld Original – Illegal in the UK

All J-B Weld products have been discontinued in the UK. The packaging supplied by J-B Weld is illegal as it does not comply with EU Regulations and is therefore not possible to import to the UK.

A replacement adhesive range, Power Maxed Adhesives, is available at: http://www.powermaxed.com/adhesives/
The replacement to the J-B Weld Original can be found at: Power Maxed Steel Power Epoxy

 
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Colin Bishop

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Re: Stainless steel ?
« Reply #20 on: June 19, 2018, 01:29:10 pm »

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Martin (Admin)

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Colin Bishop

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Re: Stainless steel ?
« Reply #22 on: June 19, 2018, 03:22:40 pm »

I expect that one has increased water resistance Martin as it is recommended for below waterline repairs.
Colin
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Re: Stainless steel ?
« Reply #23 on: June 19, 2018, 03:51:28 pm »

JB Weld should be ok after
Brexit  :D :D :}


Ned
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TailUK

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Re: Stainless steel ?
« Reply #24 on: June 19, 2018, 04:17:25 pm »



 What is wrong with these 2.62 Kg catering size baked bean tins ? There are lots of ways you can spice up the contents if appetite starts to flag before you get to the bottom
http://www.devinequalityfoods.co.uk/heinz-baked-beans

Made like this it'll need to be really well painted! Then again they do say that "a coat of paint hides a multitude of tins"  {-) O0 {-) O0 :-))
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