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@EdStainless , you must be correct the clip is from VDM ,because we got this graph from mill who uses VDM material for 825. The other vendor who confirmed corrosion resistance is manufacturing the 825 plates themselves so may be they have the knowhow to get through this. My doubt is will this...

Hello Sirs, We have got below feedback from a Reputed Cladding mill regarding Inconel 825 being subject to PWHT. You might wonder why PWHT is required for Inconel 825, the base material is CS , Inconel 825 is the cladding material . quote The PWHT is limited through sensitization. A PWHT of...

Dear Sirs, Good day all. Is restrictions/requirements on Copper Nickel plate (UNS 71500) covered under NACE MR 0175. If yes, kindly advise. Thanks Jerin James

SB-443 UNS N06625 Grade 1

Dear All, Can someone pls advise.. Thanks

Thank you for your replies @goutam & @gtaw. Thanking you.

Dear Sirs, We are currently working on a project (pressure vessel subject to PWHT, shell thickness 16mm) where the base material is SA-203 Gr D and we dont have any existing WPS/PQR for this grade. The welding engineer in my company has left and there is no right person currently available to...

@Edstainless ,@0707 Finally it ended up as complete PWHT of tube bundle : Yes Couldn't convince the QC of exemption for PWHT for welding of non-pressure parts like tie rods and sliding plates. Anyways thanks for the replies. Thanks Jerin

@goutam_freelance, thank you so much for the above post. But this interpretation says when attachments are welded to a corrosion resistant weld metal ,so will this be applicable if a sliding bar is welded to a tubesheet or if a sliding bar is welded to the baffle. Thanks Jerin

Good day to all. We are currently working on an project (supply of filter vessels). The shell material is cladded (SA 516 Gr 70 + 625 Clad). There is an internal tubesheet (to accommodate filter catridges) which is subject to a differential pressure of 1.25 barg. The material of the tubesheet...

@0707, @ironic metallurgist, @EdStainless Please advise your thoughts on requirement of PWHT for welding of NON-PRESSURE parts to pressure parts in line with code. Thanks Jerin

@ironic metallurgist, @EdStainless Agreed about the weld dimension buut what about the tube thickness which is 1.65mm.Isnt that the base metal in our case? Thanks Jerin

@edstainless , It would be really helpful if you can explain based on table UHA 32-1 . Thanks Jerin

@ironic metallurgist The tube to tibesheet weld is only 1.2mm .please see attached joint details. Hope it clarifies . Tube and tibehseet shall be procured with carbon content 0.11%. Kindly advsie your thoughts . Thanks Jerin...

@ironic metallurgist Tube material -268 TP 410 , tubesheet - SA 182 gr F6a cl2 . Tubesheet thickness -174mm , tube thickness - 2.11mm ,tube to tubesheet joint - strength welded . Sliding bar is 410s material (26mm thk), is welded to the tubesheet . Pls let me know if you need further details...

@ironic metallurgist , Our welding engineer has advised to use NiCrMo-3 for welding instead of SS410. Operating temperature of tube side fluid is 260 Deg C & Shell side fluid is 366 Deg C. Please advise your thoughts on requirement of PWHT for welding of NON-PRESSURE parts in line with code...

@Edstainless & @0707, Kindly advise your stand on requirement of PWHT for welding of non pressure parts (sliding bars/tie rods etc. fabricated from SS410S) . Reference from the code would be appreciated or else if you can explain with regards to Table UHA 32-1 would be very helpful. Thanks Jerin

Thank you so much @titofebrianto Sir

@EdStainless, Yes, the drawings were preapred by a fabricator in England and later tube bundle was replaced by a german fabricator. Jerin

@IdanPV & @0707, thank you so much your replies.