Re: [PSUBS-MAILIST] Stainless Welding Question

["Smyth, Alec" <Alec.Smyth@compuware.com>]

309L is the one if you are joining SS to carbon steel. I've had cracks  
when using 309 (no L).



On Feb 24, 2010, at 6:47 AM, "James Frankland" <james@guernseysubmarine.com 
> wrote:

> Hi All,
>
> Finally i am getting on with my sub again and am ready to install  
> all the through hulls into the hull.
>
> The plans call for welding all the stainless parts in with stainless  
> wire.  309L if i remember correctly.
>
> Speaking to some very experienced welders here, they tell me to weld  
> the parts in using ordinary wire.  One of the guys is a shipbuilder  
> and he says they weld all the ship I/O spigots using ordinary mild  
> steel wire as it is less likely to crack.
>
> As long as its 70,000psi wire, does it really matter?  Of course  
> there is the corrosion issue, but the parts will be painted anyway  
> along with the rest of the hull.
>
> I suspect the answer to this will be to use stainless wire but i  
> would like to know why its needed.
>
> Any ideas?
> Many thanks
> James

The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it.




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************