RE: [PSUBS-MAILIST] TIG Wire

["Emile van Essen" <emile@airesearch.nl>]

Hi James,

For that purpose, I use 309 LSi. 1,6 mm.
No problem but avoid rapid cooling down to prevent cracks

Emile

-----Oorspronkelijk bericht-----
Van: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] Namens James Frankland
Verzonden: woensdag 6 mei 2009 12:15
Aan: personal_submersibles@psubs.org
Onderwerp: [PSUBS-MAILIST] TIG Wire

Hi All.

I've got a couple of choices for TIG welding wire.  I'll be using this to
weld some of the stainless through hulls in.  In particular the vent through
hulls and snorkel on the conning tower, which i stupidly didnt make before
putting it on, so now have to weld out of position.

Any suggestions as to which woule be best?

LNT 309LHF A5.9: ER 309L 12072: W 23 12 L For welding stainless to carbon
steel.Low suspectability to embrittlement. Minimum 18FN ferrite in
weldmetal. 

or

LNT 309LSi A5.9: ER 309LSi 12072: W 23 12 LSi For welding stainless steel to
carbon steel.With high silicon content for improved wettability. 

Thanks 
James


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