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#15573 - 01/29/08 03:00 AM Impact Test
Ferdowsi Offline
Member

Registered: 02/19/06
Posts: 8
Dear Friends,
when MDMT -46C, & I selected SA 516GR70 & Impact test.after run, MDMT -48C & ok for aii thickness (70mm), but in Standard ASME, SA-20 in table A.1.15 for SA516 GR70, with impact test, Alowable MDMT -50F with 1in Thickness.

There is discrepancy between software & Standard.
Please guide me
Thanks

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#15590 - 01/29/08 10:56 AM Re: Impact Test [Re: Ferdowsi]
Ray_Delaforce Offline
Member

Registered: 01/02/03
Posts: 743
Loc: Houston, TX
Hello Ferdowsi

I think you are referring to ASME Section II - Part A when you make reference to table A.1-15. This section of the ASME BPV code is a general code that is used for all the other sections such as ASME Section VIII, Division 1, Division 2, ASME Section I, ASME Section III etc. To determine the MDMT requirements you have to refer to the specific code you are using, which in your case is ASME Section VIII, Division 1. The general impact statement made in Section II - Part A cannot over ride the specific code requirements. You are governed by section UCS-66 of ASME Section VIII, Division 1.

I hope this answers your question.
_________________________
Sincerely,
Ray Delaforce
CADWorx & Analysis Solutions
Hexagon PPM

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#15607 - 01/29/08 11:43 PM Re: Impact Test [Re: Ray_Delaforce]
Ferdowsi Offline
Member

Registered: 02/19/06
Posts: 8
Dear Ray,
thanks alot for answer.
in design of pressure vessels, I notice to UCS 66,
then, -48C in pv-elite with impact test & alll the thickness(80mm) is correct?

regards
Homa

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#15608 - 01/29/08 11:46 PM Re: Impact Test [Re: Ferdowsi]
Ferdowsi Offline
Member

Registered: 02/19/06
Posts: 8
Dear ray
I have a question about hydrotest
I write this table.
can U answer me?
Thanks

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