ASTM material

Shrinath Desai · **Posted:** Fri Jan 27, 2012 7:54 am

Thanks akonrad.
Meanwhile, I got suggestions from AIA to recertify ASTM A270 as SA 213 or SA 249.
As you have mensioned,

Quote:

...it can still be used on basis of UG-10, after proper recertification. To be able to recertify, you physically need both specs to review them for differencies. This things should be done before the material is bought...

I have already compared the respective grades that will be used. Their chemical, physical and other properties remain almost same. Any minor differences here can be indicated in material purchase specification. But I am still working on other differences that should be reported.
The point that I still like to know is if all the requirement of UG-10 (2) (a), (b), (c) & (d) are satisfied then what are the marking requirement of UG-10 (2) (e).

Code:

(e) The material has marking, acceptable to the Inspector, for identification to the documentation.

Also, UG-10 (2) (f) says that ,

Code:

(f) When the conformance of the material with the permitted specification has been established, the material has been marked as required by the permitted specification.

Does this mean that the aquired material should be marked by vessel manufacturer as per SA 213/249?

Gonzaga · **Joined:** Sat Dec 15, 2001 1:00 am **Posts:** 656

akonrad wrote:

Quote:

Material for which allowable stress is not in Sect. II/D cannot be used

Yes, it can. It's all about what "used" means, what "cannot" and so on. But believe me, I have used materials and you wouldn't find them in SecIID.

For pressure retaining parts, we mean. External attachments shall be of "weldable quality"
If you mean for pressure retaining, I would be curious to know which S (allowable stress) you entered in your calculations.

akonrad · **Posted:** Sun Jan 29, 2012 12:31 am

Mauro, it depends. There are several different situations when one uses material which is not listed in Table 1A. The most obvious is a Code Case with its own table for S values, but that's not all. You can imagine a situation when you apply for a new material added into the SecII, SecVIII-1 (relevant table Uxx-23), SecIX and so on. After the case goes through balloting and it gets approved, you get a letter. You can use it from now on, even before publishing a new Code edition/addenda with this material officially listed. Another situation is using UG-15. Enough for today :)
Konrad

akonrad · **Posted:** Sun Jan 29, 2012 12:34 am

Shrinath, as I am currently on holliday, I can't answer your question with enough assurance that it would be correct. I will come back to office in a week, I will look into my papers.

Gonzaga · **Joined:** Sat Dec 15, 2001 1:00 am **Posts:** 656

akonrad wrote:

Mauro, it depends. There are several different situations when one uses material which is not listed in Table 1A. The most obvious is a Code Case with its own table for S values, but that's not all. You can imagine a situation when you apply for a new material added into the SecII, SecVIII-1 (relevant table Uxx-23), SecIX and so on. After the case goes through balloting and it gets approved, you get a letter. You can use it from now on, even before publishing a new Code edition/addenda with this material officially listed. Another situation is using UG-15. Enough for today :)
Konrad

You are right Konrad, actually i didn't think about this possibility but when I wrote:
I would be curious to know which S (allowable stress) you entered in your calculations.

I asked for an answer which might be, e.g.: from CC
Mauro

akonrad · **Posted:** Tue Feb 07, 2012 1:35 am

Quote:

I asked for an answer which might be, e.g.: from CC

You can't always get what you want...

Shrinath Desai · **Posted:** Wed Feb 08, 2012 6:25 am

akonrad wrote:

Shrinath, as I am currently on holliday, I can't answer your question with enough assurance that it would be correct. I will come back to office in a week, I will look into my papers.

Thanks, akonrad.
I will be waiting for your answer. I surely need some help to figure out these two (UG-10 (2) (e) & (f)).

Rathnam · **Joined:** Fri Jul 09, 2010 7:57 am **Posts:** 78

UG-10 covers Material identified with or produced to a specification not permitted by this Division & material not fully identified.
UG 10 (a) Identified Material With Complete Certification from the Material Manufacturer.

Code:

UG 10 (a)(2)(e) The material has marking, acceptable to the Inspector, for identification to the documentation.

This means Inspector correlates the existing marking with the T.C

Code:

UG 10 (a)(2)(f) When the conformance of the material with the
permitted specification has been established, the material
has been marked as required by the permitted specification.

The material is marked with the new marking in presense of Inspector .

ASTM material

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