User Tag List

Results 1 to 4 of 4

Thread: Fillet brazing Columbus Max - Brass or Silver?

  1. #1
    Join Date
    Jul 2016
    Posts
    22
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Fillet brazing Columbus Max - Brass or Silver?

    Hey guys! Starting to think about a road bike build and I'd like to use columbus max top and down tubes. I'm curious about the ride quality and think working with the shaped tubes could be a fun challenge. After some research I see that the new Max tubes are niobium, which like the thread below will be my first entry into high end tubing. I wanted to ask if folks here have some pointers for fillet brazing the stuff. I'm guessing fillet-pro might be a good route, assuming it's more heat sensitive than the 4130 and ZONA I've used before. That said, it's also relatively thick walled for niobium tubing, and I feel more comfortable getting a fillet down quickly in brass. Appreciate any insight!

    Best
    Chris
    Chris Sanford
    still bad at this

  2. #2
    Join Date
    Feb 2009
    Location
    State College, PA
    Posts
    5,587
    Post Thanks / Like
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Fillet brazing Columbus Max - Brass or Silver?

    With decent heat control brass is fine.

    If you are worried about overcooking, keep running those practice joints on thin wall pieces.
    Last edited by Eric Estlund; 03-22-2019 at 11:29 PM.

  3. #3
    Join Date
    Jul 2016
    Posts
    22
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Fillet brazing Columbus Max - Brass or Silver?

    Thanks Eric! For sure gonna knock out a bunch more practice joints. In general have found the silver based stuff to be pretty squirrely, at least for a beginner. Happy to hear it's doable in brass.


    Quote Originally Posted by Eric Estlund View Post
    With decent heat control brass is fine.

    If you are worried about overcooking, keep running those practice joints on thin wall pieces.
    Chris Sanford
    still bad at this

  4. #4
    Join Date
    Aug 2008
    Location
    Flagstaff, Arizona
    Posts
    10,341
    Post Thanks / Like
    Mentioned
    8 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Fillet brazing Columbus Max - Brass or Silver?

    Quote Originally Posted by cmsanford88 View Post
    Happy to hear it's doable in brass.
    There is absolutely no reason to use anything else on any steel which is not considered "stainless" and indeed silver based fillers are not as strong as copper based ones.

    - Garro.
    Last edited by steve garro; 03-23-2019 at 01:10 PM.
    Steve Garro, Coconino Cycles.
    Frames & Bicycles built to measure and Custom wheels
    Hecho en Flagstaff, Arizona desde 2003
    www.coconinocycles.com
    www.coconinocycles.blogspot.com

Similar Threads

  1. Replies: 0
    Last Post: 03-15-2019, 12:00 PM
  2. Lug brazing with brass. Need some help.
    By BigPoser in forum The Path
    Replies: 7
    Last Post: 01-25-2018, 03:37 PM
  3. Torch Tip Size for Brass Brazing Sleeves/Lugs
    By Gallus in forum The Path
    Replies: 11
    Last Post: 06-18-2014, 03:43 PM
  4. Brazing & Brass Rod question/problem...
    By Tremdo in forum The Path
    Replies: 15
    Last Post: 02-20-2013, 07:09 PM
  5. Brass or silver brazing?
    By fpavao in forum The Path
    Replies: 2
    Last Post: 12-18-2012, 01:06 PM

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •