It’s oxidation from being too hot. You need to let it cool between passes. Interpass temps on carbon are generally around 150F. That means you should be able to touch it with a gloved hand before you start your next pass. This is the reason for the length of a weld test. You need to evaluate as you...

Olivero wrote:Way too hot is what I see.

Welds shouldn't be that gray, they should be fairly shiny and with stainless, full of color.

Agreed thanks for the input.

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Sorry, not trying to be a keyboard warrior at all, just generally curious. Did you clean all the millscale to bright shiny metal? Looks like a lot of crud on the bevel and in the weld ripples. Yes I did. Inside and out. Realized I was running to hot and being to impatient between passes. This was m...

Sorry, not trying to be a keyboard warrior at all, just generally curious. Did you clean all the millscale to bright shiny metal? Looks like a lot of crud on the bevel and in the weld ripples. Yes I did. Inside and out. Realized I was running to hot and being to impatient between passes. This was m...

What do I go for? I have been the lead welder/manager of the welding shop for Brigham Young University for the past 12 years and am always looking to improve. I only manage one other person; but multiple jobs and budgets and estimates for repairs and fabrication for campus. The CWS seems like the be...

It does work, and most any MIG machine will run it. It takes less Volts than hard wire obviously. I have tinkered with it in my MIG box, and have opted for 0.024 diameter running around 15v and 225ipm. Your mileage will vary. I have not found a need for pulse as with any body panel work, tack and m...

Hello everyone. Our body shop on campus came to me the other day and was asking about mig brazing. I am familiar with silbro tig but not in mig. I have been watching YouTube videos and have a better understanding now; but sill have questions. They have a Lincoln 175 that they want to use. Will this ...

starvncoyote wrote:The dull gray looks like it got hot, I don't know about the white part, could be contaminants in the material bubbling out. I would turn up my gas and down my heat before giving it another shot.

Thanks I will give that a try.

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How do i keep this from happening? Is it my torch angle rod placement or temp. 6g 2" schd. 80 pipe. Zero land 1/ 8 gap. Root went in well; but on my second pass and cover start. Its the top side of the weld above where it bellies in the middle. Any help is much appreciated. https://uploads.tapa...

How do i keep this from happening? Is it my torch angle rod placement or temp. 6g 2" schd. 80 pipe. Zero land 1/ 8 gap. Root went in well; but on my second pass and cover start. Its the top side of the weld above where it bellies in the middle. Any help is much appreciated. https://uploads.tapa...

Here is half of round 2. Thanks for everyone's advice. https://uploads.tapatalk-cdn.com/20170606/0ba842425862b88e0fc5113d684445db.jpg https://uploads.tapatalk-cdn.com/20170606/0671e1e1ee48f015f6f432bf43ec1490.jpg https://uploads.tapatalk-cdn.com/20170606/33e54b9dea7b64d61edfaaff20219d0a.jpg https://...

Lunch anyone?


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No worries. I did see that. Wouldn't mind visiting the bayou and meeting another forum member.

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No it is not. I work for a university in Utah.

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Thank you.

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Took your advice and pre heated. It took a while to fine tune my flame and keep the flow right.

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What do ya think guys? Only 10 of the 20. Waiting for the other 10 to come in.


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I will try that. Can't remember what my silver braze is. I will check that though. The ss did wet before the brass. How much of a preheat? Brass and brazing are not my strong suit.

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19 more to go.

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Hey Everyone. I have been tasked with welding a floor mounted door stop to a stainless steel plate. The problem is that the door stop seems to be coated brass or bronze (found out the hard way)? I am not exactly sure how to do this. I tried using a tig rod we have called arc braze 157 t. We have use...

Here is the link for this rod on their site. https://www.partsmaster.us/SitePages/Pr ... e=02010305

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I use Xtractalloy quite often. It is made by Exergon. We purchase ours through a company called Partsmaster. I am not exactly sure of the make up of the flux; but I will take a look and see if I can find the specs for it.

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Has any tried one of these yet? Seem interesting and might be good for small projects; but the price tag seems high?