[PSUBS-MAILIST] Best Steel to use for Sub Hull

[JimToddPsub at aol.com]

Greg,
I should have clarified that.  It was a cut-and-paste  from a web site.  
I'm more of a librarian in that I save info in an  organized fashion when I 
come across it so I'll have it available later when the  need arises.  That 
was the case in this instance.
Jim
 
 
In a message dated 10/22/2013 1:25:34 P.M. Central Daylight Time,  
jgcottrell2002 at yahoo.com writes:

 
Thanks for the info, Jim.  It's good to know there is some one in the group 
that is also in the steel  industry.
 
Greg



 
 

From: "JimToddPsub at aol.com"  <JimToddPsub at aol.com>
To: personal_submersibles at psubs.org  
Sent: Tuesday, October 22,  2013 12:59 PM
Subject: Re:  [PSUBS-MAILIST] Best Steel to use for Sub Hull



 
Maybe more detail than you really want to know, but here  goes:
 
ASTM A 516 or ASME SA 516 grade is one of the most  popular steel grades in 
market . 

It is primarily  intended for use in welded pressure vessels where notch 
toughness is  important. It comes in four grades 55, 60, 65 & 70. At Oakley 
Steel we  mainly sell 516 gr 60 and 516 gr 70. These grades cover a range of 
tensile  strengths from 55 - 90 MPa and this versatility explains much of the 
 specifications popularity. 

For plates thinner  than 40mm we normally supply them as rolled. Plates 
supplied above 40mm thick  are normalised. 

For A 516 grade 70, which is one  of our most popular steels, the ASME 
standard composition is as follows  (dependent on grade): 

Carbon 0.27 - 0.31% 
Manganese 0.79 - 1.3% 
Phosphorous 0.035% max 
Sulphur 0.035% max 
Silicon 0.13 - 0.45% 
 
 
In a message dated 10/22/2013 11:53:12 A.M. Central Daylight Time,  
jonw at psubs.org writes:


Generally, A516gr70  suffices for personal or recreational submarines.

Jon


On 10/22/2013  12:45 PM, Christopher Cave wrote:



 
Hello, 
 
What  is the best steel to use for a submarine hull. Someone mentioned 
marine steel such  as 316,316L or 317. Any suggestions or a website I can  
review.
 
Thanks,
Chris 
 
Christopher Cave 

_christophercave at yahoo.com_ (mailto:christophercave at yahoo.com) 


 







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