PWHT REQUIREMENT FOR REPAIR OF FILLET WELD

[asad azmi]

Dear All,

 

Greetings.

 

A Vessel is being fabricated as per ASME SEC VIII DIV 1.

 

Material  of the Shell  is SA 516 GR 70 HIC - 30 mm Thk.

 

PWHT of the vessel  is already completed. PWHT is a Service requirement.

 

After PWHT it was found out that FILLET WELD of  NOZZLE PAD to SHELL  is less than the requiremnt. Nozzle Pad thickness is  30 mm. pad is welded on external surface of the shell.

 

Actual fillet is 12 mm less than the required fillet size.

 

Please advice whether Repair ( increase of fillet weld size) can be done without RE- PWHT.

 

Please give Code reference.

 

Thanks & Regards

 

Asad Azmi

[nazrulla khan]

Dear Sir,

As per ASME Sec. VIII Div. 1 UCS 56, PWHT table for Pno.1 Gr.2 material, exemptions are there only for welds with its fillet throat less than 13mm.

Regds

Naz

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[KASHKOUSHA]

dear

no,because PWHT is service requirement

 

H.KASHKOUSHA

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From: asad azmi <azmias...@gmail.com>
To: material...@googlegroups.com
Sent: Friday, August 10, 2012 11:45 PM
Subject: [MW:15058] PWHT REQUIREMENT FOR REPAIR OF FILLET WELD

[Karthik]

Hi,

If your vessel under service requirement, you should do PWHT after repair.

If it is not under service requirements, then you can do repair to increase the fillet size without PWHT but repair should be done before hydrostatic test.

Please refer UCS56(f).  

 

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

---

From: asad azmi <azmias...@gmail.com>
To: material...@googlegroups.com

Sent: Saturday, August 11, 2012 4:45 AM

Subject: [MW:15058] PWHT REQUIREMENT FOR REPAIR OF FILLET WELD