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Re: [PSUBS-MAILIST] rib span

    I also have a question on the grade of steel used,  I noticed that Jake is using SAE 950 , a High Strength , Low Alloy Steel,  in his spreadsheet calculations,  is this another name for A 516  grade 70 steel?
 
Brian Cox----- Original Message -----
From: Chris Nugent
To: personal_submersibles@psubs.org
Sent: Thursday, August 21, 2003 5:15 PM
Subject: Re: [PSUBS-MAILIST] rib span

   If no one minds me chiming in, I've a question.   "A516Gr70".  Obviously this is nomenclature referring to the grade and type of steel used, but I myself am foggy on it.  What is the difference between plate and sheet steel, and how is the above term "deciphered" into layman's terms?  Could someone break that down for me?
 
          Thanks,
 
               Chris Nugent

VBra676539@aol.com wrote:
K-350 1-man has 48" long cylinder, 2-man has 72"--the 600 is 72" in the 1-man
version just to float. Built like an anvil. The PC-8 is a 42" diameter hull,
3/8" A516Gr70 and rated at 800', so I'd say Captain Kittredge was being very
conservative. So would he.
Vance

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