Re: [MW:25773] ASME Sect IX-QW-405-Position Qualification Ranges

Dear Sir,

It states of PQR is qualified with 1G position then it will qualify for all positions, if there is no impact requirements in job and wps can be used for all positions for non impact requirement.

And if PQR is qualified for 1G position and if we will have to support it with impact requirement job , then WPS will be used for 1G position only.

With impact PQR should be qualified in either 3G in case of plate and In 5G or 6G in case of pipe to qualify all positions with impact requirement.

Regards,
Mohit Aggarwal.
Sr. Engineer-Welding.

On Mar 25, 2014 4:16 PM, "Anban" <gane2478@hotmail.sg> 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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