[PSUBS-MAILIST] identify titanium

[Alan James]

Hank,
hit it really hard with a hammer, it will make a different sound when it cracks
than stainless. There are some other thoughts here...
http://mrtitanium.info/2008/03/17/how-to-tell-if-a-piece-of-metal-is-really-titanium/

Alan

________________________________
 From: Jim Todd <jimtoddpsub at aol.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Saturday, March 22, 2014 7:05 AM
Subject: Re: [PSUBS-MAILIST] identify titanium
 


Aw, Hank, go ahead.  They'll never know the difference. 

Sent from my iPhone

On Mar 21, 2014, at 12:43 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:


Jim,
>No makes no difference, it pressure tested to 1,500 feet-ish , that is plenty.  When I brag to my coffee buddies about my magnetic coupler, it sounds better if I can throw the word titanium.  :-)
>Hank
>
>
>
>
>
>On Friday, March 21, 2014 11:02:03 AM, Jim Todd <jimtoddpsub at aol.com> wrote:
> 
>Hank, does it matter or just curious?
>Jim
>
>Sent from my iPhone
>
>On Mar 21, 2014, at 11:58 AM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>
>
>Jon,
>>The barrier is welded to a heavy ring that secures it to the housing.  I could submerge it in water and measure the displacement to get the volume.  I never thought of that,grrrrr.  It is all assembled and going in the sub in a few minutes, so I will get a volume of it next time it is apart.
>>thanks' that is a good idea
>>Hank
>>
>>
>>
>>
>>
>>On Friday, March 21, 2014 9:41:47 AM, Jon Eide Pettersen <jon at pettersen-prod.com> wrote:
>> 
>>Can you weigh the barrier by itself? Then it should be easy to determine whether it is SS or titanium.
>>
>>- Jon
>>
>>Den 21.03.2014 15:39, skrev hank pronk:
>>
>>Thanks' guys,
>>>I am just curious if the barrier in my magnetic coupler is titanium.  It is not magnetic of coarse but it is either ss or titanium, I think ?
>>>Hank
>>>
>>>
>>>
>>>On Friday, March 21, 2014 8:10:55 AM, Jim Todd mailto:jimtoddpsub at aol.com wrote:
>>> 
>>>Hank,
>>>Dan's answer is the best I know; maybe a metallurgy lab at a university.  Whatever metal it's likely an alloy so the magnet test may or may not tell you much.
>>>Jim
>>>
>>>Sent from my iPhone
>>>
>>>On Mar 21, 2014, at 8:42 AM, Daniel Lance Lance
                        <lanceind at gmail.com> wrote:
>>>
>>>
>>>Do you have any large scrap yards or someone that buys large quantities of precious metals nearby ? They can do a test with their XRF machine.
>>>>
>>>>On Mar 21, 2014 8:39 AM, "hank pronk" <hanker_20032000 at yahoo.ca> wrote:
>>>>
>>>>Can anyone tell me how to identify titanium without removing material.
>>>>>Hank
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