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Re: [MW:25571] Welder qualification query

By Materials & Welding
Give the exact ODOS of the qualification sample



Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: Vikas Waghmare <vikas.waghmare08@gmail.com>
Date: 19/10/2016 07:00 (GMT+01:00)
To: materials-welding@googlegroups.com
Subject: Re: [MW:25566] Welder qualification query

Dear Sir,

The welder diameter qualification range is 73mm and above, as he welded 6inch pipe.
My question is can the above said welder can do welding on 2inch weldolet to run pipe connection, as the weldolet od if physically verified will be more then 73mm.

Regards

Vikas


On 19 Oct 2016 7:47 a.m., "George Dilintas" <dilintas@gmail.com> wrote:
If I understand correctly your input the welder was qualified with a pipe with OD=73 mm. In that case his is qualified for OD 25 mm and over.
Please note that base metal thickness is not an essential variable for welders qualification. Only the thickness of deposited metal.
Please check also the other essential variables before you proceed

2016-10-17 8:12 GMT+03:00 Vikas Waghmare <vikas.waghmare08@gmail.com>:

Dear Friend,

2" Weldolet od will be more than 73mm and section 9 talks about OD.
My interpretation says we can weld , is there any code case or interpretation file number regarding same, if any of you arr aware please share.

Regards

Vikas


On 16 Oct 2016 10:05 a.m., "anthony chundal" <anthony.chundal@gmail.com> wrote:

Dear all,

Thickness of both base materials also shall be considered as per Qw202.

Regards,
Anthony.


On Oct 15, 2016 19:32, "Patel Vivek" <vivekpatel1303@gmail.com> wrote:

Dear vikas,

You have to qualify welder in 2 inch to weld that weldolet on 24 inch pipe....

Regards,
Vivek


On 15-Oct-2016 5:50 PM, "Vikas Waghmare" <vikas.waghmare08@gmail.com> wrote:

Dear all,

I want to weld 2inch weldolet to 24inch pipe, my doubt can i use welder qualified as per section 9 with diameter range 73mm and above to weld 2 inch weldolet whose OD is above 73mm.
Second doubt how much weld i need to deposit on weldolet to run pipe connection if code of construction is asme B31.3, i think it should be minimum thickness of branch or run pipe thickness and then make fillet. Or is it needed to deposit weld upto bevel end then a fillet.

Regards

Vikas

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--
Dr. Georgios Dilintas,
Dipl. Ing. In Aeronautic and Space Engineering
Ph.D in Mechanics of Solids - Computational Mechanics
A.I.S, A.N.I, IRCA Lead Auditor
Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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