Not logged inAmerican Welding Society Forum
Forum AWS Website Help Search Login
Up Topic Welding Industry / Technical Discussions / D1.6 question
- - By mjachim Date 09-10-2013 13:07
Hello,
My first time posting on a forum so please bare with me. I am working on a SST job and trying to use prequalified procedures. In D1.1, 2010 edition, note "e" for figures 3.3 and 3.4 states "SMAW detailed joints may be used for prequalified GMAW (except GMAW-S) and FCAW." I do not have the latest edition of D1.6. Does anyone know if there is a similar note for the prequalified joints in D1.6.
Parent - By ssbn727 (*****) Date 09-10-2013 21:52
SST is a "suped up" form of GMAW-S any way you slice it! From what I can recall, there are no such prequalified procedures for Short circuit - PERIOD!

Respectfully,
Henry
Parent - - By Lawrence (*****) Date 09-11-2013 12:53 Edited 09-11-2013 12:55
STT (Surface Tension Transfer) is exactly as Henry noted...  A high tech mode of short circuitng transfer.

I'm confused about your post overall...   The post title says "D1.6"  and the text of the post says both D1.6 and D1.1

Say more about the work,

Say more about the code,

You will get your answer

Edit:
Welcome to the Forum!

.
Parent - - By jwright650 (*****) Date 09-11-2013 12:56
I took "SST" in the OP to be an abbreviation for Stainless Steel...even though I knew what SST really was.
Parent - By Lawrence (*****) Date 09-11-2013 13:02
Now I'm really confused...  You may be right...   I prefer CRES as the short term for stainless.

Than you have SST   Super Sonic Transport

STP........  Motor Oil

Etc. etc. etc.
Parent - - By jwright650 (*****) Date 09-11-2013 13:07 Edited 09-11-2013 13:24

>In D1.1, 2010 edition, note "e" for figures 3.3 and 3.4 states "SMAW detailed joints may be used for prequalified GMAW (except GMAW-S) >and FCAW.


D1.1:2010 Clause 3.11 is what you were referring to.....in D1.6 the wording is similar, but not exactly the same see D1.6:2007 Clause 3.23.3(regarding the PJP grooves) and Clause 3.24.3 (for CJP grooves).

edit* added actual wording from D1.6
"Groove preparations for pre-qualified SMAW and SAW may be used for pre-qualified GMAW, GTAW, or FCAW."
Parent - - By ssbn727 (*****) Date 09-11-2013 21:57
Hi John!

I don't have access to D1.6 so I have to ask you this:

Does D1.6 have a note specifying that if GMAW-S is used as the process, then the WPS cannot be pre-qualified and must be qualified first?

Respectfully,
Henry
Parent - By ctacker (****) Date 09-12-2013 04:44
Henry,
D1.6: Prequalification of short circuiting transfer GMAW is limited to  helium based gasses ( at least 85% He by volume) for all positions, but is limited to 3/16" maximum base metal thickness.
GMAW-S  is also prequalified with the vertical down progression, with the same thickness requirements.
Prequalified welding only applies to nominally austenitic stainless steels listed in table 3.2 welded with filler metals whose weld metal is expected to contain delta ferrite of at least 3.0 FN as determined by the latest edition of AWS A4.2M:2006.
There are other things to consider also (preheat, interpass temps, cleanliness etc). 

Carl
Parent - By ssbn727 (*****) Date 09-16-2013 04:14
Well, then I need to get a new pair of glasses!:eek::confused::roll::lol:

I must have misread that one!

Respectfully,
Henry
Parent - - By mjachim Date 09-14-2013 18:31
Sorry for the confusion to everyone. I was refering to Stainless Steel with the abreviation "SST". Thank you, jwright650, you had the answer I was looking for.
Parent - By jwright650 (*****) Date 09-16-2013 11:24
:cool:
glad to help
Up Topic Welding Industry / Technical Discussions / D1.6 question

Powered by mwForum 2.29.2 © 1999-2013 Markus Wichitill