Skip to main content

Re: [MW:31350] UDS requirement for ASME Sec VIII Div-2 Vessels

Hi,

If the equipment is designed as per Div.2 but we do not require it to be code-stamped. Does making UDS a mandatory affair.

On Friday, December 10, 2010 at 10:06:06 AM UTC+5:30 Arunachalam A wrote:
Dear Sunil,

When you want a vessel manufactured and Code stamped as per ASME Div 2, you have the following additional documents.
1. UDS ( User Design Specification)
2. Manufacturer's Design Report.

As a user, your company need to issue User Desgn Specification ( UDS) certified as required by 2.2.2. of ASME Sec VIII Div 2, to the manufacturer.
A sample UDS is attached for your reference.

You can prepare one like the attached and issue to manufacturer.

Please note that this document need to be certified an RPE or a certified Engineer as required by Annex 2.A.2 of Code.

I hope this clarifies your doubt.

Arunachalam.A
Abu Dhabi
050-5257122



On Thu, Dec 9, 2010 at 4:12 PM, Agrawal Sunil (Mumbai -Stequ) <S.Ag...@ticb.com> wrote:

I need your advice. We are procuring a Pressure Vessel from our Vendor having Sec VIII Div-2 code. Div-2 ask for UDS (User Design Specification). We have reviewed the content of UDS (in cl 2.2.2 of ASME VIII Div-2) but all these information are already provided by us in our Mechanical datasheet/ Material Requisition and other Engineering specification sent to Vendor. In this case, do we need to prepare another separate document (called as UDS, repeating the inputs) or all documents already provided to them may be called as UDS.

 

Best Regards,

Sunil Agrawal

TICB


--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.



--
à®…à®°ுணாசலம்
கலைவாணி
சுதர்ஷனா
வருண்


--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/9fceda98-dd17-43ae-b2cb-f17b8769c333n%40googlegroups.com.

Comments

Popular posts from this blog

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change.   Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

The Schaeffler and Delong diagrams for predicting ferrite levels in austenitic stainless steel welds

Introduction Ferrite is important in avoiding hot cracking in during cooling from welding of austenitic stainless steels. 'Constitution diagrams' are used to predict ferrite levels from the composition by comparing the effects of austenite and ferrite stabilising elements. The Schaeffler and Delong diagrams are the original methods of predicting the phase balances in austenitic stainless steel welds. Nickel and chromium equivalents A 'nickel equivalent' is calculated for the austenite stabilising elements and a 'chromium equivalent' ferrite stabilising elements. These are used as the axes for the diagrams, which show the compositional equivalent areas where the phases austenite, ferrite, martensite (and mixtures of these) should be present. Although intended to show the phase balance of weld fillers, these diagrams can also be used to illustrate the phase balance of the 'parent' material. There are different diagrams for dif...