[PSUBS-MAILIST] Deep Sea Challenger

Thu Dec 25 10:08:09 EST 2014

I have been trying to figure out what grade of steel it is. I figured it was titanium, but when I watched the documentary, they kept saying it was steel. My bust guess is it is HY-100?
Merry Christmas,
Scott Waters

Sent from my U.S. Cellular® Smartphone

-------- Original message --------
From: via Personal_Submersibles <personal_submersibles at psubs.org> 
Date:12/25/2014  6:32 AM  (GMT-07:00) 
To: personal_submersibles at psubs.org 
Subject: Re: [PSUBS-MAILIST] Deep Sea Challenger 

Merry Christmas, Scott,

The 43" sphere is steel 2.5" thick.  I don't think they have released any information on what grade steel was used.  They said a cylinder would have had to be three times as thick to withstand the pressure, but I don't know if that was based on 43".  -Jim T.

In a message dated 12/25/2014 12:27:52 A.M. Central Standard Time, personal_submersibles at psubs.org writes:
What kind of metal is the personel sphere made of on James Camerons deep sea challenger sub?
Thanks,
Scott Waters

Sent from my U.S. Cellular® Smartphone

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