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RE: [PSUBS-MAILIST] Eurosub in the Americas



Thanks Hugh,
 
If I'm not mistaken the yield strength of A516 Gr 70 is 38KSI whereas S355J2 has a yield strength of 52KSI. This, according to Emile, would decrease the operating depth. Also, I am curious how the Charpy compares. Is charpy at all important in sub design?
 
Cheers,
 
Paul 
 
-------- Original Message --------
Subject: RE: [PSUBS-MAILIST] Eurosub in the Americas
From: "Hugh Fulton" <hc.fulton@gmail.com>
Date: Fri, January 08, 2010 5:06 pm
To: <personal_submersibles@psubs.org>

Hi Paul,
Equivalent is A516 Gr 70  
 

Grades and equivalents table:

ASME

ASTM

DIN17155

EN10028

BS1501

 

 

 

Name

Number

 

SA 516 60

A 516 60

HII

P265GH

1.0425

161 430A

SA 516 65

A 516 65

17Mn4

P295GH

1.0481

 

SA 516 70

A 516 70

 

P355GH

 

224-490 A & B

 
Any sub made from 516 Gr70 will be OK
 
Regards,   Hugh
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Emile van Essen
Sent: Saturday, 9 January 2010 12:09 p.m.
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] Eurosub in the Americas
 
Hi Paul,
 
There will probably be  tables to compare the steel.
The 355 stands for the yield strength in N/mm2  (Ultimate tensile strength 520 N/mm)  It is very common steel ; exotic material will make the sub more expensive and probably more difficult to weld.
Lower or higher yield strength decrease or increase the dive depth.
 
 
Pipes are even here in Inch sizes! The other problem is that you need just very short pieces and you have to buy lengths. Go with rolled plate!.
 
Regards, Emile
 

Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens lassen@rosebud.ca
Verzonden: vrijdag 8 januari 2010 23:02
Aan: personal_submersibles@psubs.org
Onderwerp: [PSUBS-MAILIST] Eurosub in the Americas
 
Hello All,
 
I am trying to evaluate the prospect of building the new Eurosub here in Canada. Does anyone know if an ASME or ASTM equivalent exists for the steel that this sub is made of? It is S355J2, a German standard if I'm not mistaken. How might I account for any differences in thickness, overall pipe / end cap diameter and steel engineering properties if I hope to build this sub which uses metric pipe sizes and a steel standard that I don't believe is available here either.
 
Cheers,
 
Paul
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