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I found a few of these plate things in somes trash and am having a heck of a time figuring out what it is. The weight is similar to aluminum but it feels much weaker. The back says chromate google didnt help much. Anyone know what the heck it is or if its worth anything?
I do know that chromate is a company that makes nuts and bolts.
Chromate salts contain the chromate anion, CrO42−. Dichromate salts contain the dichromate anion, Cr2O72−. They are oxoanions of chromium in the oxidation state +6. They are moderately strong oxidizing agents.
From wikipedia
It goes on to say that all hexavalent chromium compounds are toxic due to their oxidizing power and that the use of chromate compounds in manufacturing goods has been banned in Europe.
May want to be careful with that.
Ha! didn't even think it could be the company name.Quote:
Originally Posted by brandon
You know I wacked a piece off since its so soft to see what the inside looked like and it did create a fine dust when snapped that looked suspect to say the least. Thanks for the heads up!
How about a picture showing the area you broke off?
I tried but I do not think I am allowed being a new user and all.Quote:
Originally Posted by freonjoe
i think after one more post you'll have it, rusty
Here goes nothing.Quote:
Originally Posted by Bear
Photo Album - Imgur and broken Photo Album - Imgur
Looks just like cast aluminum, but I would still be careful with that.
That would be great for me! My bathroom scale tells me a I have 50 pounds of it. If it helps anyone guess what it is I have a feeling it might be electronics related. There were 2 or 3 already stripped out motherboards and some thin wire in the same bin these were in but who knows.Quote:
Originally Posted by parrothead
got any other pics, maybe a non broken piece so we know what it originally looked like.
The first link of pics i posted is what it looked like when I pulled it out of the trash the second link is after two wacks with a hammer. If you look at the first set their are some sort of fins on each plate.Quote:
Originally Posted by brandon
rustyshackleford
Check this link.
Be carefull it may be carcinogenic.
Chromate and dichromate - Wikipedia, the free encyclopedia
Safety
All hexavalent chromium compounds are toxic due to their oxidizing power. They may be carcinogenic, especially when air-borne. The use of chromate compounds in manufactured goods is restricted in the EU (and by market commonality the rest of the world) by EU Parliament directive 2002/95/EC
Welp looks like I have cast aluminum fellas. I found a marking on it that read A03800 quick google search lead to this Aluminum A380-T5, Casting Alloy Thanks everyone for all the help and for being so kind to a newbie.
Hope the scrapyard takes it and doesn't charge you for hazardous waste disposal.
Chromate is used, among other things, to passivate metals such as Aluminum, or I think sometimes zinc. It's nasty stuff, very poisonous, not something you want to melt or shred.
Have you ever seen your tools start to get a yellowish color, specially cheap tools? That's probably a chromate coating used to prevent oxidation.
Take it to your scrap yard, wherever it ends up will probably be a foundry that can readily deal with that type of material, as they must when dealing with scrap metals.
Scott
http://www.scrapmetalforum.com/smf-s...rum-video.htmlQuote:
Originally Posted by rustyshackleford
My first glance it looked like some form of a cast heat sink.Quote:
Originally Posted by rustyshackleford
it looks a bit like the stuff the door hinge of older front loader washing machines are made out of.
i just stripped one this weekend and it looks like aluminium but its heavier.
After pretty much all day of internet sleuthing, I'm 95% sure thats what it is. Cast aluminum heat sink housing with chromate coating for extra heat protection. Mystery solved. Thanks all!Quote:
Originally Posted by Mechanic688