Does Anyone Braze Anymore ??

[Tractor Seabee]

Here are two charts from AWS A5.8-92. This is an older version AWS as newer ones cost you $75. Finally found a way to convert to JPG as the AWS is in PDF and moving it corrupted something. These ID are how the various alloys are commonly identified and ordered. One is the silver alloy types and the other the copper alloy types. As I find old stuff in my files I will share now that I can convert PDF to JPEG in another manner. I think proprietary documents often have things embedded to thwart guys like me.

View attachment 624021

Ron

 

[yomax4]

Here are two charts from AWS A5.8-92. This is an older version AWS as newer ones cost you $75. Finally found a way to convert to JPG as the AWS is in PDF and moving it corrupted something. These ID are how the various alloys are commonly identified and ordered. One is the silver alloy types and the other the copper alloy types. As I find old stuff in my files I will share now that I can convert PDF to JPEG in another manner. I think proprietary documents often have things embedded to thwart guys like me.

View attachment 624021 View attachment 624022

Ron

You can go to various filler metals company websites and they will break down the B-cup's for each silver product. I'ts a little more clear when you are looking at a specific product like the HVAC # 15% that's so widely used. Harris and Weldcote spell it all out individually. I have this chart too. I'll look into getting a freebie on anything newer.

 

[k0ua]

Speaking of TIG brazing, can anybody comment on silver soldering with TIG? I need to connect some copper to steel.

I have some rebar I've welded up to reinforce the foundation & anchors that will eventually be buried in concrete for a HAM radio tower. I need to attach some copper to that rebar for grounding. I have the TIG welder, but no acetylene anything. You need to use high temp silver solder or such as normal solder can melt on you in a lightning strike.

I'm trying to figure out if I can get the job done with my TIG welder or need to beg, borrow or buy some acetylene rig. I've got some appropriate silver solder & flux. I assume I'd need to use at least a bit of argon to keep the tungsten clean. Not sure if the flux would help or hurt.

I've cleaned up the rebar well where things will connect up. Haven't done any testing yet on scraps & looking for advice before I get to that step.

Isn't those type of connections usually CAD welded?

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[Fallon]

Isn't those type of connections usually CAD welded?

Parts and Accessories - Free Shipping on Most Orders Over $99 at DX Engineering

Ya, I have a dozen of those 1 shots for the ground rods that are already driven in between the tower base & guy anchors. I cant pre-weld those connections. I can connect the copper to the rebar in the foundation/anchors before I haul them out of the shop to bury in concrete in the holes.

 

[Raspy]

Here is a nice brazing repair on cast iron by Abom 79:

Braze Repair on a Broken Casting Part 1 - YouTube

 

[shovelrider]

I have and still braze cast iron, wash and cook pots around here. Have done some tractor exhaust manifolds and other things.