[OT] soldering mild steel sheet, galvanic corrosion?

[Allen Mulvey]

I still have a roll so I checked the label, you are correct. I had it
backwards.

Allen

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of
Sean Breheny
Sent: Wednesday, June 17, 2020 1:04 AM
To: Microcontroller discussion list - Public.
Subject: [CAUTION: Failed DKIM Test]Re: [OT] soldering mild steel sheet,
galvanic corrosion?

Hi Jason,

On Tue, Jun 16, 2020 at 5:25 PM Allen Mulvey <[hidden email]> wrote:

> Most of his solder was 60%
> lead and 40% tin. I used to borrow it for electronic projects.
>

Is that a typo? The eutectic point is at 60% tin, 40% lead (typical
electronics solder).

Sean
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The real eutectic alloy is 63/37, but it is commonly 60/40. But that will
be hard to use with mild steel unless you have at least a 200W soldering
iron or a propane torch, and prepare the steel with phosphoric acid before
soldering.

Jean-Paul
N1JPL

Sent from my Communication Rock Slate

On Wed, Jun 17, 2020, 9:40 AM Allen Mulvey <[hidden email]> wrote:

> I still have a roll so I checked the label, you are correct. I had it
> backwards.
>
> Allen
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On Behalf
> Of
> Sean Breheny
> Sent: Wednesday, June 17, 2020 1:04 AM
> To: Microcontroller discussion list - Public.
> Subject: [CAUTION: Failed DKIM Test]Re: [OT] soldering mild steel sheet,
> galvanic corrosion?
>
> Hi Jason,
>
> On Tue, Jun 16, 2020 at 5:25 PM Allen Mulvey <[hidden email]> wrote:
>
> > Most of his solder was 60%
> > lead and 40% tin. I used to borrow it for electronic projects.
> >
>
> Is that a typo? The eutectic point is at 60% tin, 40% lead (typical
> electronics solder).
>
> Sean
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>

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