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mdavlee

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The manufacture of Mapp gas went under. The only thing you can buy any more is MapPro which is propylene. Propane burns @ 2830° and propylene burns @ 3730° If you add oxygen you can bump those up a bit. What filler are you guys using for your tig welding?
ER70S2 and ER316L
 

drf256

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The manufacture of Mapp gas went under. The only thing you can buy any more is MapPro which is propylene. Propane burns @ 2830° and propylene burns @ 3730° If you add oxygen you can bump those up a bit. What filler are you guys using for your tig welding?
You can't use propane to weld-you'll get hydrogen embrittlement. No sure on propylene.

You can cut or braze with it just fine. I cut and heat with oxypropane. So much easier and cheaper.
 

Ronaldo

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Doubles on a 371XP. Used two 3/4 inch 90 degree copper elbows and brazed them in. It sounds real nice.
8be5d33a61ee243c48a1b30d2dea6814.jpg
b013d7a3486e81303da4d80e6f3ad6ba.jpg
Single copper elbow on a Jonsered 2152.
4f05bfa918b64794530316faa5b589a9.jpg


Sent from my Z832 using Tapatalk
 

Fifelaker

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ER70S2 and ER316L
The reason I asked is ER70S6 sucks as a GTAW rod, and was wondering if that's what some of the issues people were having with porosity. I will also wirewheel about 95% of the flux off from the brazing rods, it makes it much easier and cleaner. For stainless I have been using ER308L and ER309L, is 316 that much better or just what you have?
 

mdavlee

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The reason I asked is ER70S6 sucks as a GTAW rod, and was wondering if that's what some of the issues people were having with porosity. I will also wirewheel about 95% of the flux off from the brazing rods, it makes it much easier and cleaner. For stainless I have been using ER308L and ER309L, is 316 that much better or just what you have?
S6 rod has a lot more silicon when welding. 316 is what I got give to me.
 

DrewUth

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IMG_5391.JPG Used an old golf club handle. Brazed on. Has been painted since.

Advantages of silver solder over brazing? Lower temps? Or just neater?
 
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