[modeleng] Re: Free Cutting Steel

Hello Roger,

Personally I thought that EN1A could not be tempered because of the lead, 
only case hardend, and that welding it was not a problem. I have been 
assured that it can be silver soldered, FWIW.

Tony Wells.


----- Original Message ----- 
From: "Roger Mason" <roger.g3tdm@xxxxxxxxxx>
To: "Model Engineering List - Latest" <modeleng@xxxxxxxxxxxxx>
Sent: Thursday, October 27, 2005 8:10 PM
Subject: [modeleng] Free Cutting Steel


> Hi All,
>
>    It seemed that whilst I was at the Midlands show recently I
> inadvertently started something of a heated argument.
>
>    I was buying some lengths of free-cutting mild steel (what I know as
> EN1A).   As far as I know it is made free-cutting by the inclusion of a
> small percentage of lead.   I said to the seller that I had recently
> seen reference to the fact that this steel could not be welded.   I
> asked if this extended to silver soldering - could this steel be silver
> soldered?
>
>     The seller (perhaps to protect his products) said that he regularly
> welded this material and I was silly for suggesting such a thing.
>
>    At this moment another by-stander,  who had obviously been listening
> said that it was impossible to weld EN1A.   He was not able to explain
> just why,  or what happened if you tried,  but he did know that it was
> due to the presence of lead in the steel.   The argument started to get
> quite serious,  so I excused myself and I guess I must have been the
> catalyst (perhaps an active catalyst!),  as the discussion also
> subdued.   However there was no conclusion to the matter.
>
>    So Gentlemen - I come back to my original question,  can you silver
> solder EN1A?    As a subsidiary - can it be welded?
>
>
>       Cheers,
>
>
>          Roger Mason,  in St. Agnes.
>
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