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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