Re: [MW:16836] ASME Section VIII Div. 1 : Query about stiffener ring on insert plate

Hi,

I have searched for Fig UW-14 f1 through Fig UW-14 f4 in Div 1 but I couldn't find it. Please advise.

Thanks & regards

Mohan

On 9 ஆக., 2011, at 10:04 பிற்பகல், murugesan jeyaraman <jmurugesan@gmail.com> wrote:

Hi

I understand that nozzle with insert plate means as per Fig UW-14 f1 through UW-14 f4,

If stiffening ring overlaps the insert plate (integrally reinforced Nozzle), it should not be a problem as you can directly weld over the insert plate.

If welds overlap the welding of insert plate with shell, you have to flush grind the portion of the weld, then shoot RT and then weld the stiffening ring, do some surface NDT after welding the stiffer ring.

Murugesan

On Tue, Aug 9, 2011 at 11:56 AM, Joshi <joshi@knm-group.com> wrote:

Dear All,

Request your kind expert advice on below query.

Vessel have Nozzle with Insert plate. External pressure stiffener ring is passing over Insert plate. Is this allowed as per code? Can we notch the stiffener ring to suit the insert plate shape outside vessel? Shift of Stiffener ring is not possible to no space available..

Request your prompt positive advise.

Thanks and best regards

Joshi

***DISCLAIMER NOTICE: ***

"The information contained in this email and/or any attachment hereto is strictly confidential and privileged. If you are not the intended recipient, and/or have received this email in error, you must not copy, disseminate or disclose the contents of this message and/or any attachment to any other person. Please notify the sender and delete this message and any attachment from your system. KNM accepts no liability in respect of prohibited and unauthorised use by an unintended addressee or recipient. Any personal views or opinions expressed by the sender shall be understood as neither given nor endorsed by KNM or any of the companies within the Group. Although this email and/or any attachment is believed to be free of any virus or other defect which may affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus-free and KNM accepts no responsibility for any loss or damage arising in any way from the use thereof."

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@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.

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@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.

Re: [MW:34105] SA266 GR4N 4 Cycle SPWHT

Hi, You are correct, Minimum refers to the one cycle for which this part will expose until final work shop PWHT. hence mill test certificate shall include this. Max. SPWHT, refers to additional cycles of heat treatment that are reserved for future repairs during equipment lifetime. Again, these simulated no. Of cycles shall be specified in MTC. The idea is we need to make sure that steel mechanical properties are not compromised upon exposure to multiple repairs (i e 4 cycles in your case). One could say, if steel is subjected to 4 cycles and is ok, then it should by defacto be good for one cycle, yet, this is wrong assumption cause mechanical problems and microstructure of materials varies accordingly based on no. Of cycles for which material will expose. This is apparent in alloy steel and especially for impact test values as an example. In your case, this forged CS with properties before PWHT can be understood to be " as forged" condition (i.e. Wit...

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...

Materials & Welding

Search This Blog