Re: [MW:27742] Dia range.for WPS as per API 1104

Hi

API 1104 covers welding procedures qualifications as below,

Case

1.    Clause 5 Welds Containing Filler-metal Additives

2.    Clause 12 Mechanized Welding with Filler Metal Additions

3.    Clause 13 Automatic Welding Without Filler metal Additions

 

 

Diameter range is not essential for case 1 WPS/PQR, i.e. 5.3.2.3 however "the ranges of outside diameters and wall thicknesses over which the procedure is applicable shall be identified".

 

Means unlike ASME sec 9, WPS/PQR format, additionally you may need to specify the restriction on outside diameter and thickness in order to facilitate to have control on welders use in production welding ( based on clause 6.2.2 d )

Diameter range for case 2 & 3 WPS/PQR is essential variable, refer respective clauses - 12.5.2.5 & 13.5.2

 

 

Also refer API 1104 interpretation ( specifically Page 82 /94 ) attached herewith for more details. There are many questions based on this topic only.

 

Downloaded from

http://mycommittees.api.org/standards/techinterp/transpipe/default.aspx

 

 

On Sun, Apr 22, 2018 at 10:04 AM, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

Non essential. There is no limit on pipe dia. 

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Sun, Apr 22, 2018 at 9:40 AM, CEIL Mumbai <bpplceil@gmail.com> wrote:

6.2.2(d)is for war not for wps

On Sun 22 Apr, 2018 8:17 am 'ramen samanta' via Materials & Welding, <materials-welding@googlegroups.com> wrote:

Dear Joydev

Pl. ref. API- 1104- clause 6.2.2 (d)- dia. groups

Thanks,

R.K.Samanta

On Saturday, 21 April, 2018, 11:57:31 AM IST, joydev dalai <joykolkata07@gmail.com> wrote:

Dear Expert,

Please suggest Dia range.for WPS as per API 1104.

--

Best Regards,

Joydev Dalai

Dy. Manager - QA/QC

+91-6202987794

Kalpataru Power Transmission ltd.

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