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Lanstrax, Yes, you're correct. See Fig. UG-40 for reference. I hope this will help.

Yes, according to QW-422 and QW-424.

Mategrity2009, Para. T-491.1 is the requirement for recording the indications as defined by QW-191.2.3(b). I hope this help.

If the cap is seamless construction, it's marking shall be WPB otherwise WPBW which is welded construction.

Mategrity2009, QW-191.2.3(b) Indications exceeding 1/8 in. (3 mm.)....... They can be accepted provide that are not characterized as crack, LOF or IP. The above sentence has not related to the acceptance criteria addressed in its sub-paragraph, but the indication exceed 3 mm. must reported as...

The minimum wall thickness on the bend component under internal pressure is similar to straight pipe as per para. 104.1.2(A). Para. 102.4.6 given the Code user a guideline of the extra-thickness for ordering the pipe required bending process. Ask the forming shop is another solution.

In my opinion,ASME B 16.9 products can be either seamless or welded and are typically made of pipe or plate therefore the fittings will include the seam or seamless as their origin product form. Cap is seamless because it made of plate. Caps (ASME B 16.9) used for a Code pressure vessel can't be...

In ASME IX, QW-191.2.3 is the acceptance criteria for ultrasonic examination, terminology and acceptance criteria for round indication when radiographic examination was used for performance qualification can be found in QW-191.1 and its sub paragraphs.

Using the above test coupons with the same welding process and no GMAW in short circuit mode, I agree with you as per note 2 of Table QW-452.1.(b).

Table QW-452.1(b) gives no limit of the thickness of weld metal qualified when a welder deposit the weld metal in the test coupon >= 13 mm and deposited layers is >= 3 If a welder deposits weld metal of 14 mm in 2 layers, Table QW-452.1(b) gives the qualified deposit thickness of this welder =...

M is stand for metric. Materials certified to either U.S. customary or SI may be used regardless of the unit system used in design. Reference can be found in the Code book e.g. U-4 of ASME Section VIII Div.1 I hope this may help