Temper bead welding.

By jon20013 (*****)

Date 01-13-2006 12:35

Temper bead welding has been used for many years, mainly in cases where repairs were necessary after PWHT had already been done. When properly implemented it may be used in lieu of PWHT.

Temper bead welding is pretty involved and until this past edition of ASME IX really had no rules except within implementing codes (mainly ASME Section III, nuclear work).

The one thing lacking in the 2004 edition is a WPS/PQR format to record all of the variables. I believe the subcommittee's are looking into this in order to develop a suggested format.

For a wealth of information and background on temperbead welding go to www.sperkoengineering.com

See if this link will open: https://www.aws.org/w/s/process

The above was an article published by Mr. Sperko in a recent issue of the Welding Journal.

By JCaprarulo (**)

Date 01-14-2006 18:21

Jon
Thanks for the info.

By Mahadhatu Date 08-06-2008 22:04

Can Temper bead welding be applied to 12 chrome steels like 410 (CA-15) ?

Thanks
Andy

By MBSims

Date 08-06-2008 22:19

Perhaps. These are martensitic steels and the objective would be to produce tempered martensite. This would need to be demonstrated in a procedure qualification test. There is no provision to use temper bead welding on the 12 Cr steels in a pressure application under ASME, but it may be sufficient for machinery.