[MW:23004] Re: ASME Sect IX-QW-405-Position Qualification Ranges

Hi Kunal

 

Addition of position is an essential variable for Hardfacing/ Corrosion resistant overlays. Please refer Table QW-256.1 for GTAW.

 

Thanks and Regards

Harikrishnan
On Wednesday, March 25, 2015 at 11:29:43 AM UTC+8, Kunal Patel wrote:

Dear friend,

Please refer ASME SEC-IX QW-203: Limit of Qualified Position for Procedure. Position is not essential variable for welding procedure except SAW welding process.

Kunal Patel

BVIPL

On Tuesday, 25 March 2014 14:18:59 UTC+5:30, Anban wrote:

Dear Experts

Position only a Supplementary essential variable (ie when CVN-Impact test required).

QW-405.2 A change from any position to the vertical position uphill progression. Vertical‐uphill progression

(e.g., 3G, 5G, or 6G position) qualifies for all positions. In uphill progression, a change from stringer bead to weave

bead. This variable does not apply when aWPS is qualified with a PWHT above the upper transformation temperature

or when an austenitic material is solution annealed after welding.

QW-405.4 (a) Qualification in the horizontal, vertical, or overhead position shall also qualify for the flat position. Qualification

in the horizontal fixed position, 5G, shall qualify for the flat, vertical, and overhead positions. Qualification in

the horizontal, vertical, and overhead positions shall qualify for all positions. Qualification in the inclined fixed position,

6G, shall qualify for all positions.

I'm looking at some of the WPS/PQRs received from Vendor. 

PQR state that Position Tested/Qualified- 1G

WPS state qualified for all groove and fillet positions?

CVN Tested at -30 deg C.

Based on QW-405.2 & QW-405.4- 1G does not qualify all positions.Only qualified for 1G & 1F.

Plls explain how "This variable does not apply when aWPS is qualified with a PWHT above the upper transformation temperature

or when an austenitic material is solution annealed after welding." relevant to Positions.

Pls shine some light on this. Thank You.

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