Re: [MW:31863] PWHT REQUIRED OR NOT?

before bonding, CS shall be PWHT due to one joint, NDE cleared and Explosive bonding. with these procedure no PWHT required after bonding, otherwise required, Ref UCL-34

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KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

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On Sat, Dec 5, 2020 at 10:00 AM Patel Ankit <aapatel271@gmail.com> wrote:

Dear Sir,

If you say that stress receiving process required. My WPS also qualified with PWHT (SR) Process for SS 316 plate welding.

Pl. Suggest me.

Regards,

Ankit Patel

On Sat 5 Dec, 2020, 8:57 AM Nithin Joseph, <nithindsilva4u@gmail.com> wrote:

When plate is bonded by explosion. The shape of the plate is disturbed, resulting in stresses and higher hardness. In order to straighten it up, it is always recommended to do a stress relieving heat treatment. It is nowhere specified, but to avoid issues during straightening and control hardness. 

On Thu, 3 Dec 2020 at 15:37 udaya bhaskar <dusroni@gmail.com> wrote:

Mr.Patel, Doesn't require any PWHT after explosive cladding.  

if the customer wants you can, otherwise not.

On Thu, Dec 3, 2020 at 8:34 AM Patel Ankit <aapatel271@gmail.com> wrote:

Yes sir,

After Bonding PWHT required or not??

On Thu 3 Dec, 2020, 9:00 AM George Dilintas, <dilintas@gmail.com> wrote:

What do you mean by bonding

Στις Τετ, 2 Δεκ 2020 στις 5:12 π.μ., ο/η Patel Ankit <aapatel271@gmail.com> έγραψε:

Dear Expert,

I hope all are well.

My question is In after Tubesheet Bonding PWHT required or Not?

Base Material : SA 516 GR 70. (Thk : 45 mm )

Bonding Material : SA 240 GR 316. (Thk:5mm)

Tubesheet Dia : 3000 mm

( Note : Bonding plate SS 316 : 1 No joint on base material)

Regards,

Ankit Patel

8140255303.

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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With Regards

Udaya bahaskar.D

+919676270121

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Regards,
Nithin Joseph Dsilva

+971 557645785

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