Re: [MW:24750] API 1104 - WELDING PROGRESSION

Dear Mr. Chandra Sekhar,

Change in welding progression is an essential variable as per API 1104.
Hence it is to be written separately and not together with slash (/).

Regards,

PARAG PANSARE

On 25 Apr 2016 12:09, "Chandra Sekhar" <chan1972dra@gmail.com> wrote:

Hello everyone,

I need to clarify the requirements of essential variables as described in API 1104.

We had conduction PQR's for API5L X70 material Butt Weld (5G position) in 36 inches x 22.23mm Wall Thickness as described below:

WPS 001

ROOT PASS: SMAW - E6010 - WELDING PROGRESSION - VERTICAL UPHILL

HOT    PASS: SMAW - E8010-P1 - WELDING PROGRESSION - VERTICAL UPHILL

FILL & CAP  : FCAW - E81T8-G - WELDING PROGRESSION - VERTICAL DOWNHILL

WPS 002

ROOT PASS: SMAW - E6010 - WELDING PROGRESSION - VERTICAL UPHILL

HOT    PASS: SMAW - E8010-P1 - WELDING PROGRESSION - VERTICAL DOWNHILL

FILL & CAP  : SMAW - E8010-P1 - WELDING PROGRESSION - VERTICAL DOWNHILL

With reference to the above parameters, we had conducted PQR's for both WPS on the same material and size. And the Mechanical test results had not proved any significant differences. I need to know why should I not write a WPS with the reference of the above 2 PQR's with HOT PASS welding progression as Vertical Uphill / Downhill.

With Regards,

R.Chandrasekhar

QC Engineer

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