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The project is covered by an NDA so I can't discuss any of the details on an open Forum. The Design, calculations and analysis are all in the final phase now though, the material has been selected based on our results. We have already received quotes on the afore mentioned Forgings and fixings...

Not AMS specs, but it will need to comply to ASME.

Hi, I have some large forgings I need manufactured in Inconel 718 (approximately DIA1000mm x 200mm with a bore of 700mm). Can anybody recommend a supplier that may be able to supply these. We are based in the UK but anticipate having to use a US supplier or somewhere in the Far East. On the...

Hi, I have some large forgings I need manufactured in Inconel 718 (approximately DIA1000mm x 200mm with a bore of 700mm). Can anybody recommend a supplier that may be able to supply these. We are based in the UK but anticipate having to use a US supplier or somewhere in the Far East. Thanks

Hi All, I have a materials question with regards to the EN 13480 code. We can't get round bar in the diameter we require in P355 to make a tube with flanges on the end. The flanges have already been manufactured in P355. Is it permissible under the EN 13480 code to weld Stainless steel to Carbon...

Thanks for the advice, we'll run it past our NoBo and explain that we do not require mechanical properties of P265 etc Due to low delta T.

Hi XL, The part will not see negative temperatures. This section will 'make up' part of the pipework, so therefore it's pipework as opposed to pressure accessory. I suppose you could almost say in theory that it is a short section of pipe itself. i.e. a 320mm length of pipe with a 1240 OD and...

Hi All, We're having a part for some pipework made which will be sandwiched between 2 flanges, it falls into PED cat 2. It is 320mm thick and has an OD 1240mm. Ideally it could be machined from plate or round. Looking at EN 13480 - 2 it looks like permissible plate materials are: P275NH...

From what I can understand, EN 13480-3 13.1.2 describes how to classify the support i.e. S1, S2 or S3. Being my supports are rigid anchors on a Category 3 pipe they are classed as S3. Annex N dictates that S3 supports must be welded to 15614-1.

I assume they make you do it for pipe supports as they are subject to thrust loads, if the supports fail technically the pipe could then fail. Personally though, I think simply being welded by an EN 9606-1 qualified welder should be enough for supports.

Thanks for the pointer, can quite clearly see now it'll need welding to code...that's annoying!

We're using 13480, I have tried to read through the pipe support section but it's a bit unclear for the fabrication of pipe supports. I'll have another read through it and see what our NOBO has to say as well. Thanks for your help

I'm happy to class it as pipework, I believe it conforms to the PED Article 2 Definition section 3 of piping. I'm not happy to post sketches at this stage due to NDA's etc. Imagine a pipe with plates welded on, the plates have 4 tapped holes to bolt legs onto. i.e. the legs are separate items...

The vessel can be considered pipework. Our NOBO have confirmed that.

Hi All, I'm new here and new to PED. The summary of this question is: I have a vessel I'm designing that has some tapped pads welded to the side to allow some legs to be bolted on. I have to jump through hoops to get stuff welded to code, i.e. do an individual drawing for each part, have each...