Wednesday, August 13, 2008

[MW:1030] Re: LIMIT OF WELDER QUALIFICATION OVER DIA. RANGE

YES, YOU CAN TO WELD  ALL FILLET WELD, BECAUSE BUTTWELD QUALIFY ALL FILLET, ASME IX PAR QW-452



On Wed 13/08/08 06:00 , SENTHILKUMAR SWAMINATHAN skumarswami@yahoo.co.in sent:

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Re: [MW:34832] Inquiry about Single Bevel with Back Grinding

Dear Uday, As per your question that one is called with backing only,Simple both side you are welding it is backing with strip or without st...

Refer:  ASME Sec 9, Page 143

GROOVE-WELD DIAMETER LIMITS
(See notes 1,2)
                                                                                                                        
Outside Diameter Outside Diameter Qualified, in.
of Test Coupon, in. Min. Max.
                                                                                                                        
Less than 1 Size welded Unlimited
1 to less than 2 7 /8 1 Unlimited
2 7 /8 and over 2 7 /8 Unlimited
                                                                                                                        
NOTES:
(1) Type and number of tests required shall be in accordance with QW-452.1.
(2) 2 7 /8 in. O.D. is the equivalent of NPS 2 1 /2 .
 
Regards,
S.Senthilkumar

--- On Wed, 13/8/08, shailesh dave wrote:
From: shailesh dave
Subject: [MW:1027] LIMIT OF WELDER QUALIFICATION OVER DIA. RANGE
To: materials-welding@googlegroups.com
Date: Wednesday, 13 August, 2008, 1:41 PM

DEAR MEMBERS,
 
I HAVE COME ACROSS AN INTERESTING SITUATION.
 
WE HAVE WELDERS QUALIFIED IN 6" x 7.11 mm THK. PIPE OFF COURSE BUTT WELD. MY QUESTION IS CAN THESE WELDER PERFORM WELDING OF SMALL BORE PIPE LIKE 3/4" SOCKET WELD.
 
PL. HELP ME.
 
REGARDS,
 
S.N.DAVE
 
QA/QC INCHARGE
ADGAS, DAS ISLAND, UAE



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