Seasons Greetings,
I'm preparing a Qualification to D1.1, 2008. The only info I can find about F Numbers is table 4.13. I'm using ER80S-D2 filler metal with GTAW. Am I looking in the wrong area of the Code? If I'm not, how would I select an F Number from the list?
Table 4.13
F4 = EXX15, EXX16, EXX18, EXX48, EXX15-X, EXX16-X, EXX18-X
F3 = EXX10, EXX11, EXX10-X, EXX11-X
F2 = EXX12, EXX13, EXX14, EXX13-X
F1 = EXX20, EXX24, EXX27, ERXX28, EXX20-X, EXX27-X
I remember spending a lot of time during the exam with F Numbers. I understand the idea of grouping filler metal, but I don't understand how to read the filler metal identification numbers.
Thanks,
Keith
GTAW Filler Metals "F" Numbers are not found in D 1.1.
Check B2.1 (2005 id the one I have here), Table III-1
Here is a website i use with all the F-Numbers. www.fnumbers.com
Also you can look at all P Numbers at www.pnumbers.com
Be aware though that F-numbers are essential variables for SMAW only. F-numbers need not be tracked on welder qualification records for GMAW, FCAW, GTAW, etc. Since all steel wires for these three processes are F-6 it is not really useful information to record.
By 877412 
Date 12-30-2008 19:32
Edited 12-30-2008 19:38
Regarding you qualifying a GTAW process, remember GTAW is not prequalified per D1.1 and you must do a complete Procedure Qualification per chapter 4.
The filler ER80-D2 is an A5.28 specified filler with an F #6 which is correctly identified by a previous post to you coming from AWS B2.1 -2005
Table lll "Specifcation for Welding Porcedure and Performance Qualifications"
"How to read the filler metal identification numbers"
E= Electrode
R= Rod or Roll (depending on the form of the filler)
80= tensile strength (80,000 psi)
D2= chemical composition of filler ( in this case Manganese-Molybdenum used for good impacts at low temps)
Would advise you to send for ESAB's "Welding Filler Metal Data Book" which will be helpful for you as it can answer some of your questions but like all research not all.
Good luck
Ken K
