Thickness of transverse Root Bend & Face Bend test Specimen
sevak hiren
For a WPS qualification test made on 15 mm thk. SA 516 Gr.60 plate,
What would be the required final thickness for transverse Root Bend & Face Bend test Specimen as per ASME Section IX ?
As per figure QW-462.3(a) it must be 10 mm, am I correct ?
John Henning
That is correct. Thickness shall be 10mm.
Note: For face bend specimens, the 5mm removal shall be from the root side. For the root bend specimens, the 5mm removal shall be from the face side.
John A. Henning
Welding & Materials
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Shadab Ansari
Dear hiren,
As per ASME Sec-IX,
The thickness of the face bend and root bend shall be the same as of test coupon.
Only thing is the machining allowances in order to make the specimens flat shall be deducted.
Regards
Shadab ansari
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Shadab Ansari
Dear sir,
But ASME sec-ix restricts the use of face bend and side bend for pqr thickness above 10 mm.
How it will qualify for 15 mm then??
Regards
Shadab ansari
John Henning
Please take a look at the two attached pages taken from the 2011 Section IX.
QW-451.1 states that root and face bends are required up to 19mm (3/4 in.) but that side bends may be substituted for the root/face bends for thicknesses between 10mm and 19mm, inclusive. (see highlighted items)
QW462.3 states that for base metals 10mm thick and greater, the bend specimens are to be 10mm thick. (see highlighted items)
If you have any additional questions, please let me know.
John A. Henning
Welding & Materials