Retrobike Forum Index

It is currently Fri Dec 09, 2016 8:59 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: identfying ti bolts
PostPosted: Mon Nov 01, 2010 11:12 pm 
Retro Guru

Joined: Sat Jul 04, 2009 4:41 pm
Posts: 1697
i have 2 pairs of hanebrink forks the manaul states full titainium hardware through out

so how do i tell if the bolts are ti i ll probably sell the bolts but want to confirm they are indeed titainium first


Top
 Profile  
 
 Post subject:
PostPosted: Mon Nov 01, 2010 11:27 pm 
King of the DuckBoard
King of the DuckBoard

Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
They will be very light. If you can get magnet then it wont stick to them


Top
 Profile  
 
 Post subject:
PostPosted: Mon Nov 01, 2010 11:53 pm 
Retro Guru
Retro Guru
User avatar

Joined: Fri Sep 19, 2008 4:37 pm
Posts: 5198
Location: North West
Ally bolts are light though to and also non magnetic :-(

I have found that as a 'rule of thumb' second hand ally bolts normally have some damage to the head (if used for anything more than low torque stuff - bottle cages etc) as they are quite soft (compared to Ti), Ti ones are normally OK.

Older Ti bolts quite often have thin rolls of swarf wedged in the bottom of the hex hole, newer Ti bolts don't seem to have the same problem - maybe better (and cheaper :lol:) production methods ?

The swarf can be broken / picked out, it will be quite hard and sharp.

The machining marks on Ti bolts are normally a bit more pronounced than steel or ally bolts.

WD :D


Top
 Profile  
 
 Post subject:
PostPosted: Mon Nov 01, 2010 11:55 pm 
Old School Grand Master
Old School Grand Master
User avatar

Joined: Wed Aug 08, 2007 10:35 am
Posts: 12267
Location: Penarth
Ti is warmer to the touch :D


Top
 Profile  
 
 Post subject:
PostPosted: Tue Nov 02, 2010 12:03 am 
North Wales AEC / OWMTBC 2010 Champion
North Wales AEC / OWMTBC 2010 Champion
User avatar

Joined: Sun May 11, 2008 10:13 pm
Posts: 6066
Location: Chester
Not all grades of steel are magnetic, most notably 200 & 300 series.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Nov 02, 2010 8:12 am 
retrobike rider
retrobike rider
User avatar

Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16748
Location: Yorkshire, England
Oddly by putting them in your hand and looking at them you can tell.

Ti has a slightly different look to it, be it darker grey or the shiny version and it feels neither heavy nor light. (it sits in between Alu and Ti). But maybe that just because I'm used to them. Picked up 4 lovely ones out of a box at a bike jumble for next to nowt :D


If you cannot decide, stick them on a digital balance an weight them and post a picture up.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Nov 02, 2010 10:31 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
User avatar

Joined: Sun Apr 02, 2006 1:03 pm
Posts: 11796
Location: Returning
they taste different

honest

all metals have a differing taste ,clean it first tho


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 03, 2010 11:30 pm 
Retro Guru

Joined: Sat Jul 04, 2009 4:41 pm
Posts: 1697
will put some pic up at weekend

around the head of the bolts there what i can only describe as little lines from machineing


Top
 Profile  
 
 Post subject:
PostPosted: Fri Nov 05, 2010 6:35 pm 
Retro Guru
User avatar

Joined: Tue Feb 09, 2010 3:21 pm
Posts: 824
Location: County Antrim
Its very easy to identify titanium - just hit the bolt with an angle grinder. If the sparks are white its titanium, orange or yellow sparks indicate steel and no sparks is aluminium.

Simples :D


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: 02gf74, davidj, mattr, scottproonly and 15 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group