SS 410S Forging Material.

[Ronak_Patel]

Hello all,
I`m working on Heat exchanger Design and my process data sheet mention SS410S material spec for tubesheet .

I tried searching for forging material spec in SA182 But could not find SS410S Or SS405.Is there any other spec covering the same ??

Tubesheet thickness is 100mm . Can i use SA 240 410S Plate for the same ?

Also i was wondering when solid SS tubesheet is used against cladding on CS/LAS??

thank you

 

[EdStainless]

As 410S I presume that you mean S41008, in which case A240 would be the spec.
410 isn't very expensive and 100mm isn't that thick. I don't see clad as saving any money.

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P.E. Metallurgy, consulting work welcomed

 

[MJCronin]

Ronak ... can you post the entire design data sheet ?

It will help us answer your questions...

MJCronin
Sr. Process Engineer

 

[Ronak_Patel]

@EdStainless Thank you for your reply ..
SA 240 is spec for plate but i`m looking for forging in SS 410S but Could not find it in SA 182 . Is there any other spec covering forging of SS 410S??

@MJCronin I`m sorry but i can not post the entire Data sheet because of NDE signed. Please let me know what more information is needed.

 

[Christine74]

I don't think there's any ASME forging standard that covers 410S stainless. However using SA-240-410S plate should work as long as you don't have an integral tubesheet design that uses a special "cup" forging. But at 100 mm thick it's almost always more economical to use a clad tubesheet over a solid stainless tubesheet, so you probably don't even need to worry about finding the appropriate 410S material standard.


-Christine

 

[Ronak_Patel]

@Christine74 Thank you for clarification.

 

[Krausen]

Yes, I've only ever seen plate (under SA240) for 410S (UNS S41008) material. If you are wanting a tubesheet forging for this, it may be good to check with client on if 304 or 316 material is an acceptable alternative to 410S? Unless there are chlorides in the process that risk Chloride Stress Corrosion Cracking (CSCC), going with 304 or 316 should be an acceptable upgrade without much cost increase & would allow for a tubesheet forging.