window screen frames

i was wandering if all window frames the ones that surround the screens is it extrusion? how much is it worth? i took some in and on the sheet it didtnt say extrusion y?

They go by MLC by me.

Scrap Low Copper Aluminum
Low Copper Aluminum shall consist of clean, uncoated aluminum plate, may include clips or punchings
ISRI grade TABOO may be included in this grade

Scrap Aluminum Extrusions
Aluminum Extrusions shall consist of clean aluminum extrusions including window & door frames
Must be free of iron inserts, screws and plastic, rubber or other foreign materials.

if there not extruded where can i get extruded aluminum?

Most heat sinks are extruded....also round tubing like AL lawn furniture, crutches and walkers.

i didnt know heat sinks were extruded i got ripped off then do i have to tell the scrap guy that its extruded and not asume he will just give it to me? i mean granted i had them mixed in with some other aluminum i thought it was all the same=( am i to asume that i have to seperate it and tell them its extruded? how much is extruded go for?

You can generally tell if something is extrusion by looking at it closely. You will notice fine lines running throughout (kinda like the playdough machine you had as a kid that you forced the playdough through). I do not think heat sinks are extrusion. I am currently looking at 3 of them sitting on my desk (I use one as a business card holder). Although I could be wrong because everytime someone brings in a Gaylord box full of them I see some I have never seen before. My yard buys them as MLC...which we are currently paying $0.68 a pound for. On a side note we break our extrusion into 2 groups: 6061 and 6063. 6063 is almost always used for structural purposes.

i see thanks now by lines you mean like the lines you see when you cut wood? or lines like what are on heat sinks?

Originally Posted by skylinejackjr

Who mentioned anything about cutting wood? Tell ya what, pull that "dip thingy" out of the hot water heater and look real close for the lines on it. Kinda like that.

You didn't know? You can cross cut extrusion and count the rings err lines.


Wonder if someone has been doing lines...

lines and etchings are FLAWS. Most extrusions are smooth. There are so many web sites for extruded AL. If you who have questions would just do a little research you will find plenty of info with pictures that will answer all of your questions. I simply copied that info and took it to my yard.

ah thanks everyone is helpful even the funny ones=)

Originally Posted by Mick

They will pay you for the lowest priced metal in the pile unless they have a "mixed metal" price or it's like "irony aluminum". Depends on the yard but you really should know what you're doing when you go there. And there's no better teacher than "experience".

Yeah I've found that when I took mine in but still got a decent price.

SOME window frames are extrusion, others are not. Generally the heavier the frame, the more likely it is to be an extruded alloy. Heatsinks are almost ALWAYS 6063. For extruded shapes, note that if the tee, angle, or square tube shapes have a sharp inside corner (no radius) corner they are 6063.* Heavier I-beams, channels, and angles are typically 6061.* Sheet and plate come in a wide variety of alloys and can't be readily identified visually. My yard is specifically geared for regular scrapers as they are where 90% of my product comes from. As a result, my scale operators have orders to sort customer's loads for higher value items the first few times that a new client comes in or whenever they bring in a material that they have questions about.

Here's a reference that helps some with the aluminum identification game:
http://www.metalreference.com/index1.html