Re: [MW:15064] Acceptance criteria for Tungsten Inclusion in RT

Dear Prem,

IN ASME B 31.3 Table No. 341.3.2 criteria are  given

F    Slag inclusion, tungsten inclusion, or elongated indication
                                             Individual length ≤ T w /3
                                             Individual width ≤ 2.5 mm (3⁄32 in.) and ≤ T w /3
                                             Cumulative length ≤ T w in any 12T w weld length
G           Slag inclusion, tungsten inclusion, or elongated indication
                                              Individual length ≤ 2T w
                                               Individual width ≤ 3 mm (1⁄8 in.) and ≤ T w /2
                                                Cumulative length ≤ 4T w in any 150 mm (6 in.) weld length

Please see Table 

Regards

Jatin Dave

9099026886

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From: joydev dalai <joykolkata07@gmail.com>
To: materials-welding@googlegroups.com
Sent: Friday, 10 August 2012 10:51 AM
Subject: Re: [MW:15053] Acceptance criteria for Tungsten Inclusion in RT

Dear Prem,

 

There is nothing cleared about tungsten inclusion, for better information please see in ASME sec.VIII Div.1 ,UW-51 paragraph 

On Thu, Aug 9, 2012 at 9:24 PM, prem nautiyal <prem_nautiyal26@yahoo.com> wrote:

Dear Friends   After reviewing a RT film of a Circ.seam joint (16mm thk), which has been welded with TIG + SMAW, i have observed a tungsten inclusion @2-3mm in dia. The construction code of the vessel is ASME Sec VIII Div.1   No doubt this tungsten inclusion is a defect, but i would like to know whether there is any acceptance criteria related to diameter for the same in ASME Sec VIII Div.1. Please give Code reference.   Regards   Prem Nautiyal Cell: 9769316004

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