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sarmad
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Join Date: Jul 2009
Posts: 32

WPS Thickness Range Used

10/08/2009 5:17 PM

dear every one,

i have this problem i need to know the thickness range or pipes diameter range for the wps in which standard i think its in asme sec 9 but where ???

for exmple if i have wps for thickness 15 is it cover the 20 mm

waiting answer please

regards
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Nachi
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Location: Mumbai-57
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#1

Re: WPS Thickness Range Used

10/09/2009 11:47 PM

A WPS is a guideline to ensure joint integrity as proven by PQR + applicable mech tests + NDT. It is intended for all job sizes once the welding technique used proves itself in these tests. The sizes etc come in to picture by qualifying welder on test coupons of a given size as per your job requirements. ASME IX stipulates weld metal deposit and not job size. Please ref to QW 450 - 461.
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REDAFATHY26
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Join Date: Sep 2009
Posts: 2
#2

Re: WPS Thickness Range Used

10/10/2009 1:03 AM

hi/genleman the thickness is conseder the main essentail veraibles thanks
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Abdel Halim Galala
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Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

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#3

Re: WPS Thickness Range Used

10/10/2009 1:43 AM

Per ASME Code, Section IX, QW-451 Procedure Qualification Thickness Limits and Test Specimens, and from both QW-451.1 & QW-451.2, your WPS with test coupon thickness 15 mm can cover up to 30 mm including the targeted thickness 20 mm.

Note. A lot of WPS's & PQR's were done which we used a test sample coupon with thickness t = 14 mm to cover an actual job with 2 t = 28 mm, where we used the both welding procedures SAW & SMAW.

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Abdel Halim Galala
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Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

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#4
In reply to #3

Re: WPS Thickness Range Used

10/10/2009 2:06 AM

See the attached WPS & PQR for a test coupon 14 mm thickness, used to qualify a welding job for fabrication of a pressure vessel, material ASTM A516 Grade 70 with thickness 28 mm: WPS's &_PQR's.

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phoenix911
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#7
In reply to #3

Re: WPS Thickness Range Used

10/10/2009 10:42 AM

another excellent reply from you.

p911

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Anonymous Poster
#5

Re: WPS Thickness Range Used

10/10/2009 3:03 AM

Check this link

http://www.gowelding.com/wp/wps.htm

and its sub-links, this site ahs extensive data on welding (ASME as well as Non-ASME)

or

http://www.weldingengineer.com/Section%20IX%20of%20asme_bpvc.htm

to find where.
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akp_lmp
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Join Date: Jun 2009
Location: Saharanpur, Uttar Pradesh,India
Posts: 30
Good Answers: 1
#6

Re: WPS Thickness Range Used

10/10/2009 3:57 AM

Dear friend,

Please refer ASME Section IX, Article 4,QW-450,451 Specimen and it's sub clauses.The base metal thickness range on the WPS would be 2*coupon thickness.

With best regards,

Anil

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Anonymous Poster
#8

Re: WPS Thickness Range Used

10/11/2009 1:39 PM

Please verify for thickness range in ASME Sec IX. QW451.1.

As i know once if any one(ex.2"or 6" or etc) diameter qualified,the qualification range will be applicable for all diameter.

Please let me know if any query.
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Profemeritus
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Join Date: Aug 2009
Posts: 33
#9

Re: WPS Thickness Range Used

10/12/2009 7:34 AM

Both the thickness and diameter limits are in Section IX of the ASME Code. See QW-451.2 table for thickness and QW-452.3 and 452.4 for diameters. Thickness for weld metal is found in QW-452.1(a) and QW-452.1(b). These are tables. Additional information is contained in QW-300, 301, 302, etc.
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Anonymous Poster
#10

Re: WPS Thickness Range Used

10/14/2009 1:36 AM

Please refer API - 1104 standard and you would find your answere
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dhyani178
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Join Date: Aug 2016
Posts: 1
#11

Re: WPS Thickness Range Used

08/26/2016 2:38 PM

no not covered 20 mm. required new wps.
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Users who posted comments:

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