Using jointed plate for PQR of SAW on horizontal joint

By Syah Date 01-27-2016 15:55

Dear experts,

By mistake we did not read the client's requirement carefully. There is a clause: PQR for SAW must be in 4 M long plate.

We have many extra plate but non of them are 4 M long.

I am planning to joint 2 plates : 1.5 M and 2.5 M so total 4 M.

Is there any clause in ASME IX that we can not use jointed plate for PQR ? In other word, we must use full length plate for PQR.

Your comments is highly appreciated.

Syah

By Don56

Date 01-28-2016 20:16

A requirement for a 4 meter long coupon is ridiculous. What tests are required? Why does it need to be 4 M long? There is no prohibition from joining plates to make a coupon longer in Sect. IX. Make it longer than 4 M so the joined area can be noted to discard as it will have an additional heat affected zone where the cross joint is.

By jwright650 (*****)

Date 01-28-2016 21:15

Longer than 4M would be better, you also need run on and run off room to get the SAW started and stopped.

By Kix

Date 02-02-2016 19:04

Your question about extending existing plate and if it's ok should be verified through the customer.

Kix

By 803056

Date 02-04-2016 00:19

D1.1 calls for a 36 inch length in certain cases. I guess that is close enough to call it a 1 meter length. However, 4 meters is about 13 feet long. I guess they want a lot of samples!

Al