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

[JimToddPsub at aol.com]

Vance,
>From Leeco Steel's website:
 
A537 plate steel is heat-treated. As a result, it displays greater yield  
and tensile strength than the more standard A516 grades. A537 steel  plate is 
ideal for both in boilers and pressure vessels, and is used in  the oil, 
gas and petrochemical industry.
 
Nice to see it provides at least a brief comparison to  A516.  I'm sure 
there are more variables to consider including  cost.
 
Jim
 
 
In a message dated 10/22/2013 5:23:43 P.M. Central Daylight Time,  
vbra676539 at aol.com writes:

Jim,
A537 was used extensively, as well, especially in the early boats that  
Perry built. Maybe you can figure it out. It seems that I recall being told  
that it was somewhat harder to weld but had better cold-water-under-pressure  
properties. Maybe Dr. Nuytten would weigh in on this, assuming he isn't up 
to  his ass in DW3000 alligators this week (which I suspect he is).
Vance


-----Original  Message-----
From: JimToddPsub <JimToddPsub at aol.com>
To:  personal_submersibles <personal_submersibles at psubs.org>
Sent: Tue,  Oct 22, 2013 4:18 pm
Subject: Re: [PSUBS-MAILIST] Best Steel to use for Sub  Hull


 
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_ (mailto: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_ (mailto:JimToddPsub at aol.com) " 
<_JimToddPsub at aol.com_ (mailto:JimToddPsub at aol.com) >
To: _personal_submersibles at psubs.org_ 
(mailto: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_ (mailto: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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