[TheForge] Sucker rod

[David E. Smucker]

I agree with Grant if you are going to quench your tongs don't use 4140 or 
4340 for tongs.  Still for some tongs I like 4140 -- for example pick up 
tongs, or as I call them fishing tongs (where you go fishing in the fire for 
that small part).  I like them because you can make them light, and springy 
with thin sections for the jaws.  You just don't leave them in the fire and 
you DON'T quench them.  You also don't let someone else use your tongs if 
made of 4140 or 4340.

Dave
----- Original Message ----- 
From: "Grant Marcoux" <gblacksmith at alamedanet.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Saturday, January 19, 2008 1:20 PM
Subject: RE: [TheForge] Sucker rod


> 4140 is wonderful stuff....it is what gun parts (slides, barrels and
> actions) were/are made of.  Makes spiffy tooling for impact applications 
> and
> fly press goodies, but I would use something else for hot work tongs that
> are cooled in the slack tub, due to risk of cracking following numerous
> cooling cycles.  ASTM specification A36 behaves better in this 
> application,
> in my opinion.  But hey, if you have a bunch of free sucker rod, go for 
> it!
>
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net]On Behalf Of Woolley
> Sent: Friday, January 18, 2008 7:43 PM
> To: Sponsored by ABANA
> Subject: Re: [TheForge] Sucker rod
>
>
> I have never heard the term "sucker rod " before.  Where does it come 
> from?
>
>
>
>
> David E. Smucker wrote:
>> Bob, It been more than 40 years since I was a young engineer working
>> in the oil patch but back then we had a series of different alloys to
>> use in different wells depending on the type of corrosion problem we
>> might have in a given well producing from a given formation.  In fact
>> we had a series of very short sucker rods -- we call them pony rods --
>> about 2 foot in length that we could put down a well to test which
>> type of rod gave the best life under real world conditions.
>>
>> All of that said, our most common rod material was 4140 or 4340 or
>> some similar alloy.  My starting point in making tooling from sucker
>> rod would be to assume that it is 4140 and make a test piece.  Both
>> 4140 and 4340 are oil quenching.  I happen to have some 7/8 dia 4340
>> that I obtained through a local scrap dealer and it makes great
>> tooling, tongs etc.  You should have good luck with your sucker rod.
>> Oil companies pay good money to have high performance out of sucker
>> rods.  It gets expensive to have to do down hole repair work because
>> you have failed sucker rods.
>>
>> Dave Smucker
>> ----- Original Message ----- From: "Bob Ehrenberger"
>> <eforge at centurytel.net>
>> To: "theforge" <theforge at mailman.qth.net>
>> Sent: Friday, January 18, 2008 9:48 AM
>> Subject: [TheForge] Sucker rod
>>
>>
>>> I picked up some sucker rod last week and was told that it was good for
>>> making hand tools. Do any of you know what steel it is? or the
>>> composition
>>> of alloys in it?
>>>
>>> Robert Ehrenberger
>>> Shelbyville, Mo.
>>> eforge at centurytel.net
>>>
>>>
>>>
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>
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