[MW:4269] MW- 4246- WPS without Impact Test]

 

Hi Vikas,

 

Following are the recommendations of ASME Sec-IX.

 

·         QW-405.2--Vertical-uphill progression (e.g., 3G, 5G, or 6G position) qualifies for all positions.

·         QW-404.4-For hard-facing and corrosion-resistant weld metal overlay, qualification in the 3G, 5G, or 6G positions, where 5G or 6G pipe coupons include at least one vertical segment completed utilizing the up-hill progression or a 3G plate coupon is completed utilizing the up-hill progression, shall qualify for all positions.

 

 Basically for procedure qualification, 3G- up qualifies for all position. However same is not true for performance qualification..

 

Thanks.

 

 

Pradip Goswami,P.Eng

Senior Engineer/Specialist(Welding-Metallurgy)

Engineering & Training Services Division

ONTARIO POWER GENERATION Inc.

PO Box-2000, RR-55(South)

Nanticoke, Ontario,N0A1L0

Tel:-(519) 587-2201, Ext 3107--in Nanticoke

         (416) 231-4111, Ext 5925--in Kipling,Toronto

Fax: (519) 587-6814

Email-pradip.goswami@opg.com.

 

---------------------------- Original Message ----------------------------

Subject: [MW:4246] WPS without Impact Test

From:    "Vikas Bhandari" <vikas.bhandari349@gmail.com>

Date:    Sun, February 7, 2010 8:26 am

To:      materials-welding@googlegroups.com

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Hi

 

AS per SEC IX, If one WPS is qualified in 3G position for what other positions it is qualified (please give the reference clause).

 

Thanks

 

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