Re: [MW:14555] RE: 14478] QW-403.6 OF ASME SEC. IX (MIN. THK. RANGE QUALIFICATION)

Dear John,

I saw your experience in welding field on WM site and I would like to ask you something:

I have to combine

1. PQR (Code ASME IX) -2"x5.54mm welded full GTAW 6G pos.-(Base metal ASTM A 106 Gr.B,Filler metal-ER 70 S3).

2. PQR (Code API 1104) -6"x 15.9mm welded full SMAW-6G pos.-(Base metal API 5L X52 ,Filler metal E 6010,Diam.3.2mm for root and cap,E 7010P1/G ,Diam.4mm for Fill.-API 1104.

It is possible?

 

GIGI ZEGHEANU

 

QA/QC /Welding  Dpt.

From: John Henning <jhenning@deltak.com>
To: materials-welding@googlegroups.com
Sent: Thursday, 7 June 2012, 21:19
Subject: [MW:14488] RE: 14478] QW-403.6 OF ASME SEC. IX (MIN. THK. RANGE QUALIFICATION)

Minimum thickness is 6mm.

 

QW-403.6 says ". . . where T is less than 6mm, the minimum thickness qualified is 1/2T . . ." .   Since your thickness is not less than the general rule of T to 2T applies.

 

Note this wording has also given me heart burn.  What I have done is to take a 1/4 inch plate (nominally 6mm) and have the thickness machined to 0.249 inches, this then qualifies for thickness 0.124 to 0.499 inches.  If I need the thickness I will also weld a 1/2 inch thick plate to qualify 1/2 to 1 inch. 

 

Enjoy.

 

John A. Henning

Welding & Materials

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of CHINTUKUMAR GANDHI
Sent: Wednesday, June 06, 2012 5:30 AM
To: materials-welding@googlegroups.com
Subject: [MW:14478] QW-403.6 OF ASME SEC. IX (MIN. THK. RANGE QUALIFICATION)

 

Dear Experts,   What shall be the minm. qualified thk. range if PQR is qualified with 6 mm. Nom. thk. with Notch toughness properties. Will it be 3 mm. or 6 mm. as per QW-403.6 of ASME Sec. IX?   Further, suppose If I shall qualify this procedure on 5 mm. thk. PQR test coupon (machined from 6 mm. thk.), which thickness shall I have to consider for temperature reduction during subsize test specimen testing? Will it be 5 mm.(actual thk.) or 6 mm. (nom. thk.)?   Awaiting your experts' opinion at the earliest.   Thanks & regards,     C. R. GANDHI

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-- To post to this group, send email to materials-welding@googlegroups.comTo unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.comFor more options, visit this group's bolg at http://materials-welding.blogspot.com/The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.