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IMPACT TESTING

IMPACT TESTING

IMPACT TESTING

(OP)
Hi,
   In compress i see a coloum called MDMT,TEST TEMP for a particular material where can i get the values of MDMT and What does test temperature indicates.
            I have a vessel with 20" OD and 2700psi int pressure with a thickness of 2.3440.If i run the calcs without impact testing then i get an error saying that Rated MDMT 40F is higher than design MDMT 20F?
Can any one addres this issue  

RE: IMPACT TESTING

THE THICKNESS OF 2.344 IN THE MATERIAL LISTED IS EXEMPT FROM IMPACTS DOWN TO +40*F.  +20*F IS LOWER TEMP THAN +40*F

IMPACTS ARE REQUIRED

YOU COULD PROBABLY GO TO NORMALIZED MATERIAL TO GET RID OF REQUIRED IMPACTS, BUT CHECK TO MAKE SURE  

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