Mystery metal

[Thumper68]

I again went a bit overboard at a auction and may have purchased a couple of thousand pounds of metal.

Amongst this was several pieces of 1 1/4" round bar marked HT-62451

Anyone know what alloy this may be? Google did not give anything.

 

[Chris_Hamilton]

if it's a steel alloy, the HT makes me think it's this.

Alloy Grade UNS: HT - Resistant to Thermal Shock - MetalTek

This alloy, with nickel the predominant alloying element, is highly resistant to thermal shock and carburizing conditions. Contact us today.

www.metaltek.com

 

[Thumper68]

Thanks for the link.

 

[thejimmy]

Are they magnetic?

 

[Thumper68]

Are they magnetic?

I didn't have a chance to check, I'll have to do that tomorrow

 

[American Locomotive]

That could also just be a heat/batch identifier for tracibility, and unrelated to the actual alloy.

You really would need to find someone with an XRF gun. They're basically as close to a Star-Trek tricorder as you can get. Point it at a hunk of metal and it will tell you what its made out of. Wild stuff.

 

[RoninB4]

Without an XRF analyzer or a metallurgy lab a magnet and a spark test is about all you can do. I'm a bit curious now.

 

[thejimmy]

XRF gun, good idea . If there is a metal scrap business local to you they may test it for a small fee
or if you have scrap to trade in...

 

[alfadan]

I found 62000 series is an aluminum bronze. Maybe a clue?

 

[Thumper68]

It's not magnetic, to heavy for a exotic alloy. After closer examination it isn't showing any signs of corrosion so I'm guessing some kind of stainless.

If I have time and remember I'll see if someone has a XRF to test it.

 

[PCustoms]

In guessing HT-62451 is a heat lot or mill code for the batch.

 

[Jim greengo]

Picture?

 

[Thumper68]

Picture?

Yeah, it's a dull silver metal rod 1 1/4" in diameter in 3 lengths, approximately 3', 5' and 8'
Honestly I didn't think that a pic would help.

 

[Jim greengo]

My dad was really good at telling what kind of material he had to work with by looking at it,but he's been gone a couple of years now.

 

[DocsMachine]

It's not magnetic, to heavy for a exotic alloy. After closer examination it isn't showing any signs of corrosion so I'm guessing some kind of stainless.

-Any one of a dozen flavors of stainless, Inconel, Monel, Hastelloy... Having a heat treat number (presumably) suggests possibly a 400 series stainless, except those tend to be somewhat magnetic. Inconels and Monels (high nickel alloys) are nonmagnetic.

Concur the suggestion to have it XRF tested. As scrap, some of those exotic alloys can be worth... well, maybe not a ton, but more than brass or aluminum.

Doc.

 

[RoninB4]

^Agree with Doc^, I have tooling I made from a less common (but still available) silvery metal called Tantung that's non-magnetic and has some heft to it. There's also Ferro-Tic and Waspaloy (my favorites...) but I don't recall if they're magnetic or not.

The 400 series of SS is often magnetic (firearms, machinist scales, knives) but it depends upon the specific grade in the 400 series only.

Also agree with Doc on the scrap value potentially being worth a lot more than the more common materials. It would be a good idea to find out exactly what you have, especially considering the lengths/diameter you have. You may even want to consider making something that utilizes the properties of it. Need to find out exactly what it is,

 

[Thumper68]

A friend of a friend of a friend passed along my contact info to a grad student at the university who has access to the equipment to find out what it is, I'm going to cut him a sample and hopefully he can test it for me.
If I ever find out what it is I'll update this.

 

[welder4956]

In guessing HT-62451 is a heat lot or mill code for the batch.

I agree. This is a common marking for heat numbers. If you knew the manufacturers name, you could contact them with the Heat number to get the material chemical composition, alloy type and material specification it was made to.