UG-6

[c8829]

Forging certified to SA-181 is used for M\H stump, as per UG-6(c)(1) can we consider it as normalized forging??

 

[metengr]

No. What was the heat treatment performed, if any? Review 4.5 of SA-181 below

4.5 Heat treatment is neither required nor prohibited,
but when applied, heat treatment shall consist of tempering,
annealing, normalizing, or normalizing and tempering.

 

[c8829]

material manufacturer certified forging to SA-181 so they shall austenizing heat treated( tempering,
annealing, normalizing, or normalizing and tempering.) that forging.

 

[metengr]

No, the forging can be supplied with no h eat treatment as I stated above. If the heat treatment was specified, it must be stated as one of the above, not all options. I suspect, there was no heat treatment performed, which means you cannot meet the requirements of ASME Section VIII, Div 1 UG-6 (c) 1.

 

[Mec.tec]

No forging shall not be considered heat treated unless the manufacturer has certified on mtc. However in both cases it shall be considered in SA 181 because heat treatment is optional.

 

[c8829]

1).Does PWHT fullfill the requirements of ASME Section VIII, Div 1 UG-6 (c) 1.?

2).Does PWHT (Even its not required as per UCS-56) fullfill the requirements of ASME Section VIII, Div 1 UG-6 (c) 1.?

 

[GenB]

You say is used M n H construction. Nothing to do with U-6 and you can use it as non or normalized as is. For M use sect II.D wile H has its own stress tables. If normalized it should be stated in the test report ot mfr certification.