Go Back   RCCrawler Forums > RCCrawler General Tech > Tools, and Procedures
Loading

Notices

Thread: Tempering brake line brazed cages

Reply
 
LinkBack Thread Tools Display Modes
Old 09-25-2021, 11:37 AM   #1
Newbie
 
Join Date: Sep 2021
Location: PNW
Posts: 5
Default Tempering brake line brazed cages

Hey guys, im wondering if its possible to temper the 3/16 brake line like what i would find at the auto store, after making my cages. Want to get hardness and prevent bending after rolling over

TIA
hodor is offline   Reply With Quote
Sponsored Links
Old 09-25-2021, 12:15 PM   #2
I wanna be Dave
 
Join Date: Jun 2006
Location: Here
Posts: 2,283
Default Re: Tempering brake line brazed cages

They are pretty tough if triangulated well enough to not need it. (Unlezs your rig is ove 20#) You could temper it in an oven. Is the cage brazed or welded?
Gula is offline   Reply With Quote
Old 09-25-2021, 03:05 PM   #3
Pebble Pounder
 
Join Date: Sep 2010
Location: Lava Lands
Posts: 135
Default Re: Tempering brake line brazed cages

You should just start building with stainless steel tube and safety silver 56%. Once you get the triangulation to reneforce it will plenty strong. Brake line is nasty stuff, build a cage out of 6 ft sticks of 304. You'll never touch galvanized again.
dusty husky is offline   Reply With Quote
Old 09-25-2021, 09:28 PM   #4
Newbie
 
Join Date: Sep 2021
Location: PNW
Posts: 5
Default Re: Tempering brake line brazed cages

Quote:
Originally Posted by dusty husky View Post
You should just start building with stainless steel tube and safety silver 56%. Once you get the triangulation to reneforce it will plenty strong. Brake line is nasty stuff, build a cage out of 6 ft sticks of 304. You'll never touch galvanized again.
Good info, but i want the weight savings of the hollow tube. Can i get that in stainless?
hodor is offline   Reply With Quote
Old 09-25-2021, 10:00 PM   #5
RCC Addict
 
Join Date: Jun 2008
Location: Mudville
Posts: 1,591
Default Re: Tempering brake line brazed cages

Yes, you can buy stainless tube over solid rod.
Timmahh is offline   Reply With Quote
Old 09-27-2021, 07:38 AM   #6
RCC Addict
 
Join Date: Dec 2014
Location: So Cal
Posts: 1,005
Default Re: Tempering brake line brazed cages

You can't harden that material, mild steel, because of the low carbon content. What you can do, which is standard issue in baja/desert race vehicles is to put crown into the roofline. Ever so slight a radius will stiffen the cage dramatically. Crazy that most of the U4 and crawler world don't do this. Alumicraft and Jakes Fab Works come to mind as some of the more drastic curved roofs so you can see what I'm talking about. A flat tube bends/dents easier than a curved one. Perhaps this will work for your build.
MAC FAB is offline   Reply With Quote
Old 01-21-2022, 12:46 AM   #7
Newbie
 
Join Date: Jan 2022
Location: New York
Posts: 1
Default Re: Tempering brake line brazed cages

Manufactured from low-carbon steel. One or more superficial coatings are applied after brazing to protect the steel substrate from corrosion, because steel has no inherent corrosion resistance to the road environment. Although coating composition has changed since the original hot-dip lead-tin coatings were used, coating flaws remain a problem. The addition of zinc-rich paints did little to improve the protection of the tube. Current aluminum-zinc coatings and added polyvinylfloride coatings are still inadequate to totally protect the steel tube.


Target Pay and Benefits

Last edited by Roberta; 01-22-2022 at 12:11 AM.
Roberta is offline   Reply With Quote
Old 01-21-2022, 06:50 AM   #8
Rock Crawler
 
Join Date: Jan 2022
Location: st louis
Posts: 574
Default Re: Tempering brake line brazed cages

Can't do it with brake line. FYI tempering isn't just done in the oven, that's actually annealing after tempering or any other process that causes hardening. Some here need some metallurgy reading.

Brake line will harden but will also become very brittle. I've cracked and broke cages because of it. But it's done dipping the join in water (or snow lol) immediately after braze, weld or simply heating very hot.

Brake line is not good for a full vehicle build, good for a bed or similar on a scaler but beyond that it's too soft or if it's hardened it's brittle and cracks easily.

Sent from my SM-N975U using Tapatalk
tigris99 is offline   Reply With Quote
Old 01-21-2022, 03:17 PM   #9
Rock Crawler
 
Join Date: Apr 2020
Location: Drums
Posts: 572
Default Re: Tempering brake line brazed cages

Have you thought of filling the hollow tubing with epoxy to give it more strength? Not a super light alternative but lighter than solid rod.

Thin a long dry time (30, 45 min..??) two part epoxy with alcohol and inject into the tubing in different areas with a syringe till is starts to come out the other side.
OnTheTrail is offline   Reply With Quote
Reply



Tempering brake line brazed cages - Similar Threads
Thread Thread Starter Forum Replies Last Post
tempering metal........ bob1961 Tools, and Procedures 16 04-01-2012 03:46 PM
Brake line! warfile Tools, and Procedures 34 08-26-2009 03:48 AM
brake line grizz HPI Wheely King 9 06-24-2008 09:35 AM
How much Brake line? run2jeepn Newbie General 1 05-30-2006 04:32 PM
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 08:35 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com