TIG brazing Brass to Steel.....?

I'm putting a Brass bushing into a steel tube.
The Brass bushing is flanged so it will butt up to the outer edge of the Steel tubing. There will be a Stainless rod running throught the bushing and I do not want the Brass to rotate in the tube.

Has any of you ever used a TIG torch to braze Brass to Steel?
I just read that you use a silcone Bronze filler rod to do it. I have never Brazed anything so I'm wondering how different it is from welding? Is it basically controlled melting?

I would guess I work the Steel first to get it hot enough to melt then put some heat on the Brass?

You will need to get a filler rod to join the two of them (well, you may be able to get the brass to flow, but I woudl not recommend it).

I woudl assume the bushing you are using are actually bronze. Be cautious if they are "oilite" style. If so, they will be a less than 100% dense sintered product that s impregnated with oil or wax. If you heat it, the lubricant will be no more.

I think I would lean towards small torch and silver solder.

Quote:

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Originally Posted by sportbike

You will need to get a filler rod to join the two of them (well, you may be able to get the brass to flow, but I woudl not recommend it).

I woudl assume the bushing you are using are actually bronze. Be cautious if they are "oilite" style. If so, they will be a less than 100% dense sintered product that s impregnated with oil or wax. If you heat it, the lubricant will be no more.

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The filler rod I have seen several people recommend is a "SifBronze #8".
BUT, I Will be using an oil impregnated Brass bushing so I am changing my plan. I'm going to order a different wall thickness pipe and just press the bushing into the Steel pipe.

Thanks for clearing that up!!
I don't have a torch so that is why I was going to use my TIG.