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Robbie
Robbie MegaDork
1/25/20 10:13 p.m.

It's 48.625 inches by 72 inches by 3/8 inch thick. Online calculator says it weighs 129lbs, and I believe it. Craigslist ad had been sitting nearly a month at $350, I paid $300 ($2.33/lb). 

Since I need like maybe 3sq ft for the challenge car and now own 24, anyone need some aluminum? Hahaha.

 

Mr_Asa
Mr_Asa Reader
1/25/20 10:20 p.m.

Actually, I do.  3/8" may be a little thick, but I could use a good portion of it.  Too bad you aren't nearer to Florida

 

Edit: I've got to rebuild the front seat in a 64 year old boat

https://i.imgur.com/2S1y5ps.jpg

Vigo
Vigo MegaDork
1/25/20 10:31 p.m.

Wow. surprise

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
1/25/20 10:37 p.m.

Our local sheet metal recycler used to sell old street signs for scrap prices. They're quite burly as long as you don't mind the odd bullet hole. A coworker used to use them for undercar aero and diffusers.

3/8" is some hefty stuff. I think my skid plate is only 1/4", and it's taken some serious hits.

Knurled.
Knurled. GRM+ Memberand MegaDork
1/25/20 10:39 p.m.

Do you know what grade aluminum it is?

Slippery
Slippery GRM+ Memberand UltraDork
1/25/20 10:43 p.m.

Don't sell it as scrap. I sold 3000 lbs Friday for .22/lb 

Robbie
Robbie MegaDork
1/25/20 10:50 p.m.
Knurled. said:

Do you know what grade aluminum it is?

It was marketed as and has printing on the other side indicating 6061. Other than that I don't know how to tell.

Robbie
Robbie MegaDork
1/25/20 10:56 p.m.
Slippery said:

Don't sell it as scrap. I sold 3000 lbs Friday for .22/lb 

Yeah, it was much more than scrap (my local place is currently listing .19/lb). However, I think new "cutoff's" price is normally around $3/lb for aluminum.

Cactus
Cactus Reader
1/25/20 11:01 p.m.

6061 is good stuff. Probably the most common alloy for actually doing stuff with. It's as easily weldable as any aluminum can be. I want a crapload of plate, ideally thicker than that so I can remake my ramp truck's bed lighter and less rusty.

Mr_Asa
Mr_Asa Reader
1/25/20 11:07 p.m.

In reply to Robbie :

If you have anyone with access to a Rockwell hardness tester you could bring in a piece of scrap and they could verify that.  

Potentially other grades that would match that, but with the 6061 stamped on it that would be enough for most to use in a personal project. Would take more to use it in a work setting.

pirate
pirate HalfDork
1/26/20 7:47 a.m.

If the sheet had a ink stamp of 6061 it most likely followed with a T followed by a number indicating the temper. A 0 would indicate the sheet is annealed or full soft a 4 would indicate a tensile strength of 26,000 psi and a 6 would indicate tensile strength of 42,000 psi or full hard. T6 is probably the most common. For the average fabricator the temper Is probably not all that important it's not likely anyone will be bending 3/8".plate. 

captdownshift
captdownshift GRM+ Memberand UltimaDork
1/26/20 9:20 a.m.

Skidplate all the things! 

gumby
gumby GRM+ Memberand HalfDork
1/26/20 11:20 a.m.

We use ⅜" for rear motor plates(mid-plates for you guys running a transmission), and ¼" or ⅜" for fronts. You would likely be fine with ¼" for your purpose, but the price was good on that drop.

Curtis73
Curtis73 GRM+ Memberand UltimaDork
1/26/20 12:34 p.m.

I'd love to have some, but you're a bit far for a road trip.

I'm getting together all the aluminum scrap I can to build an accessory drive for an LS.  I think I have enough, but knowing how I weld aluminum, I'll need more.

Wally
Wally GRM+ Memberand MegaDork
1/26/20 3:47 p.m.

Less than half what that much Velveeta would have set you back. 

Robbie
Robbie MegaDork
1/26/20 5:36 p.m.
Wally said:

Less than half what that much Velveeta would have set you back. 

I heard that aluminum and Velveeta share 98% of their DNA.

Robbie
Robbie MegaDork
1/26/20 5:39 p.m.
pirate said:

If the sheet had a ink stamp of 6061 it most likely followed with a T followed by a number indicating the temper. A 0 would indicate the sheet is annealed or full soft a 4 would indicate a tensile strength of 26,000 psi and a 6 would indicate tensile strength of 42,000 psi or full hard. T6 is probably the most common. For the average fabricator the temper Is probably not all that important it's not likely anyone will be bending 3/8".plate. 

and

Robbie
Robbie MegaDork
1/26/20 5:40 p.m.

Looks like 6061 T651, and .375 (but we already knew the 3/8ths part).

Stampie
Stampie GRM+ Memberand UltimaDork
1/26/20 6:15 p.m.

Cut into 21 pieces. Sell on eBay. Profit. I'll take a beer as my commission. 

pirate
pirate HalfDork
1/27/20 8:14 a.m.

T 6 and T 651 tempers are typically interchangeable. T 651 is stretched 1 to 3% during the heat treatment sometimes called aging process.

1988RedT2
1988RedT2 MegaDork
1/27/20 8:32 a.m.
Robbie said:

Is that a pool of blood in the lower right corner?  Be careful with sharp edges!

tr8todd
tr8todd SuperDork
1/27/20 9:28 a.m.

Road signs for the win.  This was a speed limit 55 sign, now its a removable trans tunnel cover thing.  The rest of the sign separates the radiator and fresh air intake system in the nose.

_
_ Dork
1/27/20 9:53 a.m.

It would be really cool if we could establish a "forum land link" where we know our nearest forum member and can hand off parts or cars to people next nearest to the intended destination. Like free shipping. I know a member is about 20mi from me. I think there's another 100mi from him. 

Robbie
Robbie MegaDork
1/27/20 10:02 a.m.

In reply to 1988RedT2 :

Hahahahaha yeah and mixed with poor lighting it's like Hello Clarice in there sometimes. The floor was once painted red and then more recently painted baby blue. Nothing is sticking well, as expected with cheap concrete paint.

TGMF
TGMF Reader
1/27/20 10:13 a.m.

I expected to see thread about the purchase of a new F150.  This is better. 

 

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