Jump to content
I Forge Iron

Recommended Posts

Good day all-----part of my "mother of all followed me homes" was 2 60 lb blocks of titanium.This was part of an estate sale of a renowned fabricator/machinist/testor metallurgist ---the gentlemans widow confirmed he did a good bit of military and aviation testing decades ago and one of these blocks is marked for Lockheed.My preliminary scan shows ti @ 88.76  fe @ .607   v @4.77-------what are the chances this was destined for the SR71 ?----i have had a devil of a time confirming the specific alloy/alloys used back then----anyone have any insight/guesses ?----all just a curiosity on a quiet Sunday ! Thanks !!

Link to post
Share on other sites

Ti is expensive when you buy it new, but worth a lot less as scrap. It has always been that way..

60# blocks would be pretty good sized.What do you plan to do with them? I have a bunch of .375" round which is a good size for a lot of projects, but a billet like you have is a project and a half.

 

Link to post
Share on other sites

Do you have a saw you can cut a slice and cut that into bar? You'd have to reduce it to usable size to even find out if it's forgable. Say 1/2" slice into 1/2" bars to play with and see. I wouldn't suggest a hot saw, I'd use my cut off band saw but a dry saw would work fine as well. If you use a dry saw be VERY careful of the chips, they WILL be FLAMMABLE in the extreme.

Frosty The Lucky.

Link to post
Share on other sites

Frosty----Thanks for that reply,that is part of my plan.On the downside---the shop is over-loaded in ALOT of ways,lacking in others,such as anything able to do this slicing.The blocks are 4" thick !----I will get it done !!

Link to post
Share on other sites
2 hours ago, yt12 said:

Frosty----Thanks for that reply,that is part of my plan.On the downside---the shop is over-loaded in ALOT of ways,lacking in others,such as anything able to do this slicing.The blocks are 4" thick !----I will get it done !!

4" isn't a problem for a hack saw, buy as course TPI you can get. Ti isn't particularly hard but it can gum up a saw if the TPI is too fine.

Frosty The Lucky.

Link to post
Share on other sites
  • 1 month later...

I have a titanium crowbar (supposed to be Russian surplus) I tried to sharpen it on my grinder. It was next to impossible. Is that a different alloy or should I have used  file??

Link to post
Share on other sites
On 6/13/2016 at 8:19 PM, gote said:

I have a titanium crowbar (supposed to be Russian surplus) I tried to sharpen it on my grinder. It was next to impossible. Is that a different alloy or should I have used  file??

Ti can alloy in almost as many ways as iron can and what the Russians put in their crow bars is certainly left over from other projects. It may be anything from nearly pure to rocket nozzle alloy or who knows.

Did it gall your grinding wheel? What color were the sparks? Does a file cut it?

Frosty The Lucky.

Link to post
Share on other sites

I will check later about sparks. I assumed that a file would not touch it since it was too "hard" for the grinding wheel but I will check that too.  It did not smear in any way. I am very happy with it. It does not rust, it is light and it seems to be stronger than a steel bar of the same thickness. I bought it from the "US Cavlry" site several years ago.  

Link to post
Share on other sites

It could be a ti oxide layer defeating the wheel. Do you have a blue wheel? A diamond grind stone will work. Watch sparks really closely! Ti can burn like magnesium it's hot, Hot, HOT!

It should be about 1/2 the weight and something like 2x as strong but that depends on the alloy some are REALLY strong. I LOVE the stuff.

Frosty The Lucky.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...