Aluminum--what kind

[monte55]

This guy I know goes to sales, auctions etc and find some really good stuff.
He wants me to do a welding job on the back of a garden tractor. He gave me 18 sheets of 13" x 17" .090 aluminum. There is a sticker on the peel off plastic side that states...Stamlin enclosures.....BP2016AL. Does the number mean
anything to anyone? This is the same guy that gave me an 8.5 lb block of aluminum last week. I love aluminum

[Dmaxer]

Nick,

I think that is a part number for an aluminum back panel on an electrical enclosure, not an indicator of alloy type.

[monte55]

I'm sure you're correct as far as a part number. The side with the lable is plastic coated that can be peeled off. Nice looking sheets.
I'm sure I'll find a use.
Nick

[davedarragh]

This guy I know goes to sales, auctions etc and find some really good stuff.
He wants me to do a welding job on the back of a garden tractor. He gave me 18 sheets of 13" x 17" .090 aluminum. There is a sticker on the peel off plastic side that states...Stamlin enclosures.....BP2016AL. Does the number mean
anything to anyone? This is the same guy that gave me an 8.5 lb block of aluminum last week. I love aluminum

Nick: It's a 2XXX wrought aluminum-copper alloy. Werner Ladder Company uses it in their "Bird Ladders." Also used for coat racks, etc.

It's heat treatable, and may contain magnesium-maganese as well. I'll have to do a little more research, specifically, for 2016 to find it's ease of weldability. Most 2XXX aluminum is spot or reistance welded, as higher welding temperatures are required to penetrate these alloys.

Nick, "Stahlin Enclosures" is a company that specializes in non-metalic "boxes" for phones, disconnects, etc. Double check the spelling on the label.

Hope this helps.

Dave

[monte55]

Dave,the name is Stamlin. The pieces feel to be fairly rigid. Does that help any?
Nick........

[Aerometalworker]

Monte,
is it bare or alclad?

[monte55]

I'm not sure I know how to tell. One side has a peel off protective layer and the aluminum under it is shiny like it has a clear coat. I haven't tried to see if acetone would effect the finish. I havent tried to tig it yet either.

[davedarragh]

Nick: I know there's 2014, 2017 alloys listed in my books, but I can't really zero in on 2016, unless it's new. If it is a 2XXX alloy, it will have copper as a major alloying element.

I'll try and keep "digging."

Dave

[aametalmaster]

This guy I know goes to sales, auctions etc and find some really good stuff.
He wants me to do a welding job on the back of a garden tractor. He gave me 18 sheets of 13" x 17" .090 aluminum. There is a sticker on the peel off plastic side that states...Stamlin enclosures.....BP2016AL. Does the number mean
anything to anyone? This is the same guy that gave me an 8.5 lb block of aluminum last week. I love aluminum

Well Nick this must be good stuff as i see your post has been stolen at least twice this week with another members name on it...Bob

[monte55]

I started reading that post a day or so ago and thought that it really sounded familiar. Then I realized it was my post with someones name on it other than mine. Thanks for staying on top of things Bob.