Wednesday, October 5, 2011

[MW:12628] Determination of CTOD for API 5L X 60Q

Dear Experts ,
              
 I am here at V & M Tubes, Germany for the inspection of API 5L X 60Q seamless line pipes for sour services. But for first day production Test (PQT pipes) I am facing following problem in CTOD testing.
                     1) Initially for the item in the PO , (size is 327.9 mm OD x 12.7 mm Thk x  12.7 m long)  the company did the CTOD test (Fracture Test)  in transverse direction for first 3 heats (specimen size is  B= 7 mm , W = 14 mm , span = 56 mm )  and for last two heats they did in longitudinal direction  (specimen size is B= 10 mm W = 20 mm span = 80 mm ) . Now my query is weather we can do this in both direction or not (In MQP it is clearly  written that we can do in both direction ) and also  as per BS 7448-1:1991 specimen thickness should be material thickness (with exceptions ) so please could you tell me weather it is acceptable or not . 

Waiting for your reply . 
ASHISH BAVISKAR
Cell No.   0091 9222 180 936
Current Location:    Germany 
Cell No : 0049 1525 142 8831


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