SMAW rods for boiler construction

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jlakes85
Posts: 228
Joined: Thu Feb 23, 2012 6:07 am

Re: SMAW rods for boiler construction

Post by jlakes85 »

Boiler builder,

Sounds good. Since XX10 doesn't have the ticking code clock associated with 7018's out of the oven or fresh can, I wonder why they aren't used for all passes on our boilers right off the bat?
jlakes85
Posts: 228
Joined: Thu Feb 23, 2012 6:07 am

Re: SMAW rods for boiler construction

Post by jlakes85 »

Hi Marty,

Can you advise how hot you run the 1/8 Excalibur 7018 when doing stay bolts? My stays are 1/2 diameter and the sheet width is 5/16.

Regards,

John
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Harold_V
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Joined: Fri Dec 20, 2002 11:02 pm
Location: Onalaska, WA USA

Re: SMAW rods for boiler construction

Post by Harold_V »

I suspicion that the width reference is really the thickness, yes?

H
Wise people talk because they have something to say. Fools talk because they have to say something.
jlakes85
Posts: 228
Joined: Thu Feb 23, 2012 6:07 am

Re: SMAW rods for boiler construction

Post by jlakes85 »

Hi Harold,

That's correct..don't know where that word "width" came from..
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: SMAW rods for boiler construction

Post by Marty_Knox »

jlakes85 wrote:Hi Marty,

Can you advise how hot you run the 1/8 Excalibur 7018 when doing stay bolts? My stays are 1/2 diameter and the sheet width is 5/16.

Regards,

John
No, John, I'd rather not. It's not the sort of thing you can learn from the internet. My advice would be to take some scraps of your plate, drill holes and countersink them, and practice on them. When you get one you're happy with, cut it in half and see how much penetration you got.
jlakes85
Posts: 228
Joined: Thu Feb 23, 2012 6:07 am

Re: SMAW rods for boiler construction

Post by jlakes85 »

Hi Marty,

Sounds good. Does stuff like loctite navel jelly leave behind contaminants that would need to be rinsed out with acetone? There are a few joints coming up that I want to do via a backgouge process where I figured that the jelly would leave no doubt about reaching sound metal, but I am concerned about the potential to contaminate.

Regards,

-jlakes85
Marty_Knox
Posts: 1724
Joined: Thu Jan 09, 2003 6:50 pm
Location: Michigan, USA

Re: SMAW rods for boiler construction

Post by Marty_Knox »

I wouldn't use any chemicals near where I was going to weld!!!
There is no reason you should have to do anything more than grind to backchip.
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