7050 T7651 Bought at Auction - Any Ideas of Value?
Close
Login to Your Account
Page 1 of 2 12 LastLast
Results 1 to 20 of 35
  1. #1
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    West Virginia
    Posts
    5
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    5

    Default 7050 T7651 Bought at Auction - Any Ideas of Value?

    Hello.

    I am starting a very small, one-man garage shop with a Haas TL-2 lathe (new) and Haas TM-1P (2010 - purchased from an add on this site). I just purchased a LOT (as in a large amount) of 7075 T7651 Aluminum Bars - 11' x 6" diameter. 8 each totaling 1,700 pounds. I was in the aerospace/defense industry for many years and used 7070/7050 and of course 6061 material daily. I tried to get some idea of what to bid on this material would be on the open market, but never received any quotes back before the auction ended.

    My winning bid was $3,160 and have a shipping quote for $700. Yeah, obviously not going to chuck that up in my TL-2, but thought the price was worth the risk. I'll have enough aluminum to last at least through my learning stages

    Any thoughts on whether this was a "good deal" or not? I was going to just get a hundred pounds or so to play around with initially, but this came up at the last minute and I had to make a pretty snap decision without doing a whole lot of due diligence. And for me, that was a sizable risk...

    Thanks for sharing any thoughts!
    Mattaluminum-rods-2.jpgaluminum-rods.jpg

  2. #2
    Join Date
    Jul 2004
    Location
    Houston, TX USA
    Posts
    30,722
    Post Thanks / Like

    Default

    Scrap? Any serious end user business use would need pedigree on paper for heat number(s). You have a large amount of "play with" aluminum bar

  3. Likes Limy Sami, Garwood, Bobw liked this post
  4. #3
    Join Date
    Apr 2005
    Location
    Beaverdam, Virginia
    Posts
    8,126
    Post Thanks / Like
    Likes (Given)
    914
    Likes (Received)
    3908

    Default

    Quote Originally Posted by johnoder View Post
    Scrap? Any serious end user business use would need pedigree on paper for heat number(s). You have a large amount of "play with" aluminum bar
    Definitely agree. What is the country of origin? If it isn't stamped right on the outside that is a bad sign.

  5. Likes Limy Sami, Hopefuldave liked this post
  6. #4
    Join Date
    Jan 2007
    Location
    Norfolk, UK
    Posts
    19,662
    Post Thanks / Like
    Likes (Given)
    15103
    Likes (Received)
    15263

    Default

    To start with I think you should check your math, because your weight figures don't tally for me

    This calculator Materials Weight Calculator says 366.5lbs per 11' bar of 6''

  7. #5
    Join Date
    Apr 2005
    Location
    Beaverdam, Virginia
    Posts
    8,126
    Post Thanks / Like
    Likes (Given)
    914
    Likes (Received)
    3908

    Default

    Quote Originally Posted by Limy Sami View Post
    To start with I think you should check your math, because your weight figures don't tally for me

    This calculator Materials Weight Calculator says 366.5lbs per 11' bar of 6''
    Same here so he got more than he thought. $1.08 pound for 7075? I don't buy large quantities of 7075, but when I did I seem to recall it costing 50-75% more than 6061, but that was a dozen years ago. For that price of a little over $1 a pound I smell a rat. I think an auctioneer would have an insider buy it before it went that cheap if it was good traceable material.

    P.S. Now I am confused, is it 7050 or 7075, both have been listed.

  8. #6
    Join Date
    Apr 2018
    Country
    UNITED STATES MINOR OUTLYING ISLANDS
    Posts
    3,973
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1794

    Default

    Quote Originally Posted by Limy Sami View Post
    To start with I think you should check your math, because your weight figures don't tally for me

    This calculator Materials Weight Calculator says 366.5lbs per 11' bar of 6''
    They don't look like 6" bars in the photo.

    Which is good, 2" or 3" is a lot more useful.

  9. #7
    Join Date
    Jan 2007
    Location
    Norfolk, UK
    Posts
    19,662
    Post Thanks / Like
    Likes (Given)
    15103
    Likes (Received)
    15263

    Default

    Quote Originally Posted by Dualkit View Post
    Same here so he got more than he thought. $1.08 pound for 7075? I don't buy large quantities of 7075, but when I did I seem to recall it costing 50-75% more than 6061, but that was a dozen years ago. For that price of a little over $1 a pound I smell a rat. I think an auctioneer would have an insider buy it before it went that cheap if it was good traceable material.

    P.S. Now I am confused, is it 7050 or 7075, both have been listed.
    (my bold)

    There's the rub Dualkit, either the OP doesn't know what he's doing (he'd have mentioned certs) or there's no paperwork, .and no paperwork = scrap

  10. #8
    Join Date
    Sep 2006
    Location
    Sacramento County, California
    Posts
    3,922
    Post Thanks / Like
    Likes (Given)
    2455
    Likes (Received)
    1389

    Default

    It's OK for machining and so forth. Just don't use it for a weldment.

    Aluminum Workshop: Why isn’t 7075 weldable?

  11. #9
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    West Virginia
    Posts
    5
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    5

    Default

    It comes from a US Government auction and it does have material certs (though they were not shown in the two pictures they posted during the auction). It was very late last night when I posted - my wife is terminally ill, so I tend to get some respite time for myself between midnight and 3am.

    I zoomed the picture up as far as possible. And yes, it looks like they are 4.25 and not 6" diameter. I was just going off the post listing.

    Here are the numbers as best as I can make them out: VAC 4.25 R REV N/C 76***051-1 7050 T76511 AMS 4340 REV ***1715732 The asterisks are numbers I could not read due to the straps securing the bars.

    Does that help??

    Thanks again! - Matt

  12. #10
    Join Date
    Jul 2006
    Location
    Hillsboro, New Hampshire
    Posts
    8,933
    Post Thanks / Like
    Likes (Given)
    2142
    Likes (Received)
    6175

    Default

    Quote Originally Posted by mlofgren View Post
    It was very late last night when I posted - my wife is terminally ill, so I tend to get some respite time for myself between midnight and 3am.

    Matt
    Matt, that's tough to hear. My best to your family, and if it is indeed terminal I hope your wife's passing is as comfortable as possible.

  13. Likes aarongough liked this post
  14. #11
    Join Date
    Jul 2004
    Location
    Houston, TX USA
    Posts
    30,722
    Post Thanks / Like

    Default

    You could put a bar on Ebay with readable scans of the "certs" showing they matched the heat number readable photos on the bar - and see if anyone is interested

    Supposing a buyer, you then have a shipping problem

  15. #12
    Join Date
    May 2005
    Location
    Interior British Columbia
    Posts
    2,447
    Post Thanks / Like
    Likes (Given)
    255
    Likes (Received)
    781

    Default

    I guess now, it's worth what you paid for it.

    End of the day, you are going to have to come up with stuff to make with it that will make it profitable. And you now have some go-to material that you will be tripping over forever, that you can use for making fixtures and jigs when you need.

    Know anyone whose kids are racing dirt bikes? Stuff like "Billet" gas caps and such things seem to sell OK.

    I'm sure there are other possible products.

    Check the prices that the online metals guys are charging out for short cuts (not full stick qty) and list some on eBay, is one way to part with some of it.

    If you have any artistic pretensions, make artistic things and give them as gifts or desktop 'business cards'. I made a batch of fairly simple machinists cubes, that turned out to be one of the more sought after goodies I made, given that they were pretty much just an exercise in fixturing and doing reasonably accurate work.

  16. #13
    Join Date
    Oct 2009
    Location
    Oregon
    Posts
    4,771
    Post Thanks / Like
    Likes (Given)
    5156
    Likes (Received)
    2463

    Default

    That was a bad decision.

    That material is worth about 25 cents a pound if it's near enough for an easy pickup and they will load it into your truck. $500 would have been a fair bid. You got hosed.

  17. Likes Larry Dickman liked this post
  18. #14
    Join Date
    Apr 2005
    Location
    Beaverdam, Virginia
    Posts
    8,126
    Post Thanks / Like
    Likes (Given)
    914
    Likes (Received)
    3908

    Default

    Quote Originally Posted by Garwood View Post
    That was a bad decision.

    That material is worth about 25 cents a pound if it's near enough for an easy pickup and they will load it into your truck. $500 would have been a fair bid. You got hosed.
    Solid clean scrap aluminum goes for $.22 around here. The stuff was double that before the tariffs hit.

  19. #15
    Join Date
    May 2019
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    755
    Post Thanks / Like
    Likes (Given)
    229
    Likes (Received)
    332

    Default

    I wouldn't say you got screwed but I wouldn't call it a crazy deal either. I routinely get "mill overrun" 7075 for less than you paid not counting your freight, but go look at what a small piece costs to buy! MTRs are great but depending on your customer they will likely mean nothing. I always ask for MTRs when I can but rarely need to produce them. 99 times out of 100 someone that needs "certified" material will not be shopping the second hand market.

    If its 4.5" my rough math, figuring .1 pound per cubic inch comes in at 1500ish pounds. Keep it, use it or sell it in small lots on ebay but don't expect to make any money selling it all in one wack.

  20. #16
    Join Date
    Jan 2017
    Country
    UNITED STATES
    State/Province
    Oregon
    Posts
    3,475
    Post Thanks / Like
    Likes (Given)
    714
    Likes (Received)
    2421

    Default

    I got .35/lb for aluminum scrap today, picked up...

  21. #17
    Join Date
    Feb 2005
    Location
    Hatch, NM Chile capital of the WORLD
    Posts
    9,211
    Post Thanks / Like
    Likes (Given)
    14807
    Likes (Received)
    11014

    Default

    After shipping, you are at approximately $2.35 a pound.

    As for the alloy, I've never seen a print that required it. McMaster
    Carr and Online Metals don't carry it, so you've got yourself an odd
    duck.

    As for temper, I know that a T76511 in 7075 can only be had in little odd shaped
    extrusions. (Don't ask how I found that out, lets just say the machining
    of the parts took less time than *trying* to find the material, turned out
    there was a modification in the contract that my customer failed to tell
    me about)..

    Looking real quick here, there aren't a lot of tempers available for 7050, and
    T76511 is identical to T76510.



    My guess, a job came through that some dip shit engineer spec'd a whacked
    out material spec, and some body had a mill run done, and this is left over
    from the 2000lb minimum.

    And as others have said, you need the paper on it to make it worth anything.

    Though even if you have the paper on it, who is going to need it?

    You can still sell it here or on e-bay. I've gotten in a pinch and sold a
    bunch of material here and on E-bay (years ago). The home shop Harrys love
    a flat rate box full of random drops. Paid the bills for a few months. Granted,
    I was only getting about 25 cents a pound for a fat box of drops, but it was
    better than nothing, and it paid better than the scrap man.


    Like you said.. Play with it. Learn. And then as others have said, come up
    with something stupid to make, and sell it. Giant aluminum dildo sculptures or
    "billet, mil spec, aircraft grade" Tonka Truck rims. (don't laugh, I started, but
    never finished, a set of aluminum rims for a Tonka Winnebago years ago._

  22. #18
    Join Date
    Apr 2005
    Location
    Beaverdam, Virginia
    Posts
    8,126
    Post Thanks / Like
    Likes (Given)
    914
    Likes (Received)
    3908

    Default

    Is it 7050 or 7075? The thread title does not match the body of the OP's first post, and to me looking at the pic it looks like 7050 is printed on the bars.

  23. #19
    Join Date
    Jan 2017
    Country
    UNITED STATES
    State/Province
    Oregon
    Posts
    3,475
    Post Thanks / Like
    Likes (Given)
    714
    Likes (Received)
    2421

    Default

    I've seen that spec (7075 T76511) on a part I make for a helicopter hard point.

    I was unable to source it, so the customer provided the material for me on those parts. It was 4" rod- still have a couple chinks on the shelf.

    edit: correction- I just looked at the drawing, it calls out 7075 T73511 with an alternate 7075 T6511.

  24. #20
    Join Date
    Oct 2009
    Location
    Oregon
    Posts
    4,771
    Post Thanks / Like
    Likes (Given)
    5156
    Likes (Received)
    2463

    Default

    Quote Originally Posted by Dualkit View Post
    Solid clean scrap aluminum goes for $.22 around here. The stuff was double that before the tariffs hit.
    I'm pretty familiar with how scrap works and what a small amount like what this thread is about is worth.

    If you have a lot of something non-ferrous, say 200,000 lbs or so you can just about name your price on the world market when times are decent.

    If you are like most shops and end up with a spare thousand lbs or so of aluminum every now and then it's worth about 25 cents a lb to the scrap buyers or to the home shop Harry's.

    I'm pretty baffled as to how this ever got bid up so high. I kinda doubt there were two people ignorant enough to bid that much. I'm thinking it was a shill situation and this guy didn't know what was going on.

    Was this a bidspotter type of platform?

    If you don't know, if you bid more than one minimum increment above the current bid the auctioneers and anyone else bidding can tell. So if you go into it thinking you're going to win something and throw down a big number you will almost always find you win it for one bid increment less than your max bid.

    I bet that's what happened here.


Tags for this Thread

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
  •