RCCrawler Forums

madowning · 04-22-2007, 06:53 PM

I need to braze mild steel parts. I have a MAPP gas torch. Am uncertain what type of flux and rod to use.

'83 chevy · 04-22-2007, 07:05 PM

how thick is the steel? if its too thick you will need an oxy/act. cutting torch with a brazing tip

madowning · 04-22-2007, 07:13 PM

It is jack chain and coat hanger wire thick.

'83 chevy · 04-23-2007, 12:33 PM

then youll be fine with a MAPP set up

madowning · 04-23-2007, 12:36 PM

What type rod and flux to use. I am a newbie at it so any helpful info is much appreciated.

madowning · 04-23-2007, 12:51 PM

Am I saying it wrong? I do not have a welder. I simply want to braze 1/8" or thinner mild steel joints with a MAPP gas torch and want to know what to use for the flux and rod?

Thorsteenster · 04-23-2007, 01:00 PM

use flux for the flux and silver solder for the rod, but its a spool, not rod.

madowning · 04-23-2007, 01:24 PM

I've tried that, I think. I am using flo-temp Silver Bearing Solder and Rubyfluid Soldering Paste flux. I cannot get the solder to stick. even after grinding and cleaning the surfaces to be joined.

gone_wheelin · 04-23-2007, 02:55 PM

I may be missing something but why not use Harris Safety-Silv 56 solder and Stay-Silv paste flux. Both should be available at any reputable(sp) welding supply shop.

FrankyRizzo · 04-23-2007, 04:20 PM

This is what I use.

Bernzomatic

85,000 PSI tensile strength, 1250F to 1750F working temperature

madowning · 04-23-2007, 05:26 PM

We don't have that brand here,but I did manage to get an 1/8" fluxed brazing rod, now I just have to try it out.

FrankyRizzo · 04-23-2007, 09:54 PM

I bought them at Home Depot.

madowning · 04-29-2007, 10:30 PM

I found out that I had not been using enough heat for the size of the join I was trying to braze. So I put an additional torch on the task, A bit tricky, but it woks job completed.

gr33nlemon · 05-03-2007, 07:59 AM

Quote:

Originally Posted by FrankyRizzo

This is what I use.

Bernzomatic

85,000 PSI tensile strength, 1250F to 1750F working temperature

Quick question...about how many brazing rods does it take to complete an average TLT tuber? I'm thining of starting a tuber, but I'm unsure of how many brazing rods I will need. I hate running to the store in the middle of a project, so I'd like to make sure I have enough, but I don't want to have 3 million extra brazing rods around when I am finished. And with that brazing rod, you don't have to use flux with it? How's the completed joint come out looking?

braceysdad · 05-03-2007, 08:24 AM

I use safety silver 56 and stay silver flux paste. Goes on like butter

Prime · 05-09-2007, 06:23 AM

Quote:

Originally Posted by gr33nlemon

Quick question...about how many brazing rods does it take to complete an average TLT tuber?

I am just now building my first complete tube chassis, a prerunner and it looks like it is going to take about 2.5 30" rods. I have built a truggy bed and bumpers before though and the first few times you will use a lot more rod than normal as you learn how to control it.

gr33nlemon · 05-09-2007, 07:21 AM

Ya, I picked up a pack of the bernzomatic rods posted above. One pack includes 2 rods....maybe 12" long. I started my tuber a few days ago and have gone through 1 complete rod and just started to use the other one. I think I'll b eable to make it to the finish with just those 2 rods if I am careful and don't make big gobby brazes like I did when I started.

vypr2002 · 07-01-2007, 09:22 PM

can I get a quick rundown on how to use the rods like those from depot?
I bought some but havent figured out how to use them yet. I am looking here first before I just go and ruin a bunch of stuff.
thanks

Robb · 07-01-2007, 09:50 PM

The Harris Safety Silver 56 is the easiest to use, and most recommended around these parts.

Frankyrizzo may be the first person I have ever heard of using the Bernz rods with any success. I have used them for about 10 minutes, and moved on to something else. I just couldn't do anything with them.......................maybe I wasn't holding my tongue right, or maybe just didn't give them enough of a chance.

Available at Home Depot also are the Lincoln Electric brazing rods, which I have had nothing but success with.

Try out a few different brands/types, and see what works best for your speed, heat, and style.

Cloak · 07-01-2007, 10:01 PM

Quote:

Originally Posted by Robb

Try out a few different brands/types, and see what works best for your speed, heat, and style.

That's really what it comes down to. I have some safety silv and I've had it work perfectly once. Best joint I've ever brazed. Every other time it pools up on me, so I use the home depot one in those plastic tubes which are flux coated. I can get it right every time with those.

I just need more practice with the safety silv. I agree it goes on like butter when I can actually get it on.

04-22-2007, 06:53 PM	#1
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	What do I use to braze mild steel? I need to braze mild steel parts. I have a MAPP gas torch. Am uncertain what type of flux and rod to use.

04-22-2007, 07:13 PM	#3
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	Not very thick It is jack chain and coat hanger wire thick.

04-23-2007, 12:36 PM	#5
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	My concern is.... What type rod and flux to use. I am a newbie at it so any helpful info is much appreciated.

04-23-2007, 12:51 PM	#6
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	Ok, ok... Am I saying it wrong? I do not have a welder. I simply want to braze 1/8" or thinner mild steel joints with a MAPP gas torch and want to know what to use for the flux and rod?

04-23-2007, 01:24 PM	#8
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	Thanks Dirk I've tried that, I think. I am using flo-temp Silver Bearing Solder and Rubyfluid Soldering Paste flux. I cannot get the solder to stick. even after grinding and cleaning the surfaces to be joined.

04-22-2007, 07:05 PM	#2
'83 chevy Rock Crawler Join Date: Feb 2006 Location: Easthampton Posts: 747	how thick is the steel? if its too thick you will need an oxy/act. cutting torch with a brazing tip

04-23-2007, 12:33 PM	#4
'83 chevy Rock Crawler Join Date: Feb 2006 Location: Easthampton Posts: 747	then youll be fine with a MAPP set up

04-23-2007, 01:00 PM	#7
Thorsteenster I wanna be Dave Join Date: May 2006 Location: Arlington, VA Posts: 3,377	use flux for the flux and silver solder for the rod, but its a spool, not rod.

04-23-2007, 02:55 PM	#9
gone_wheelin Rock Crawler Join Date: Sep 2004 Location: Santa Rosa Posts: 688	I may be missing something but why not use Harris Safety-Silv 56 solder and Stay-Silv paste flux. Both should be available at any reputable(sp) welding supply shop.

04-23-2007, 04:20 PM	#10
FrankyRizzo I wanna be Dave Join Date: Apr 2005 Location: Vegas Posts: 7,172	This is what I use. Bernzomatic 85,000 PSI tensile strength, 1250F to 1750F working temperature Attached Images Last edited by FrankyRizzo; 04-23-2007 at 04:26 PM.

04-23-2007, 05:26 PM	#11
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	Thank you We don't have that brand here,but I did manage to get an 1/8" fluxed brazing rod, now I just have to try it out.

04-23-2007, 09:54 PM	#12
FrankyRizzo I wanna be Dave Join Date: Apr 2005 Location: Vegas Posts: 7,172	I bought them at Home Depot.

04-29-2007, 10:30 PM	#13
madowning Newbie Join Date: Apr 2007 Location: Modesto Posts: 8	ok great success! I found out that I had not been using enough heat for the size of the join I was trying to braze. So I put an additional torch on the task, A bit tricky, but it woks job completed.

05-03-2007, 08:24 AM	#15
braceysdad Adilynsdad too! Join Date: May 2004 Location: G ville Posts: 8,844	I use safety silver 56 and stay silver flux paste. Goes on like butter

05-09-2007, 07:21 AM	#17
gr33nlemon Quarry Creeper Join Date: Nov 2006 Location: Manchester Posts: 249	Ya, I picked up a pack of the bernzomatic rods posted above. One pack includes 2 rods....maybe 12" long. I started my tuber a few days ago and have gone through 1 complete rod and just started to use the other one. I think I'll b eable to make it to the finish with just those 2 rods if I am careful and don't make big gobby brazes like I did when I started.

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07-01-2007, 09:22 PM	#18
vypr2002 Rock Stacker Join Date: Jun 2007 Location: my mom's basement Posts: 63	can I get a quick rundown on how to use the rods like those from depot? I bought some but havent figured out how to use them yet. I am looking here first before I just go and ruin a bunch of stuff. thanks

07-01-2007, 09:50 PM	#19
Robb RCC Addict Join Date: Aug 2005 Location: VARCOR Posts: 1,826	The Harris Safety Silver 56 is the easiest to use, and most recommended around these parts. Frankyrizzo may be the first person I have ever heard of using the Bernz rods with any success. I have used them for about 10 minutes, and moved on to something else. I just couldn't do anything with them.......................maybe I wasn't holding my tongue right, or maybe just didn't give them enough of a chance. Available at Home Depot also are the Lincoln Electric brazing rods, which I have had nothing but success with. Try out a few different brands/types, and see what works best for your speed, heat, and style.

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