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Up Topic Welding Industry / Technical Discussions / definitions
- - By banshee35 (**) Date 07-12-2008 00:44
does anyone know and could you briefly explain what the following filler metal designations mean? i've never seen fillers called this way before. thanks.

1.6  The following shall be used as a guide for filler metal qualification range:
  TEST FILLER METAL  RANGE
  F1  F1
  F2  F1 and F2
  F3  F1 thru F3
  F4  F1 thru F4
  F5  F5
  F6  F6
 
  TEST FILLER METAL  RANGE FOR     RANGE FOR GMAW AND
    SMAW      GTAW
  F21  F21      F21 thru F24
  F22  F22      F21 thru F24
  F23  F23      F21 thru F24
  F24  F24      F21 thru F24
 
  TEST FILLER METAL  RANGE
  F31  F31
  F32  F32
  F33  F33
  F34  F34
  F35  F35
  F36  F36
  F37  F37
  F41,42,43,44, orF45  F41 thru F45
  F51  F51
  F61  F61
  F71  F71
  F72  F72
  No F No. - List specific Product
Parent - - By Shane Feder (****) Date 07-12-2008 02:15
banshee35,
The F numbers are the groupings designated by the ASME committee of electrodes based on their usability.
The reason they have these groups is to reduce the amount of welding procedure and welder performance qualifications.
(eg. If you qualify with a c/s GTAW wire F No.6 you are also qualified to weld s/s GTAW F No.6 for welder performance as the code feels that they are similar in usability.)
QW 432 in ASME IX gives you all the information you require if you can get your hands on the code.
Regards,
Shane
Parent - - By 803056 (*****) Date 07-12-2008 16:45
AWS B2.1 also lists filler metals grouped by F numbers.

F1, F2, F3, F4 - carbon steel and HSLA - covered electrodes
F5 - corrosion and heat resistant alloy steels - covered electrodes (stainless steel)
F6 - carbon steel, HSLA, and corrosion and heat resistant alloy steels - bare wire
F2X (twenties) - aluminum and aluminum based alloys
F3X (thirties) - copper and copper based alloys
F4X (forties) - nickel and nickel based alloys
F5X (fifties) - titanium and titanium based alloys
F6X (sixties) - zirconium and zirconium based alloys

F1 through F4 for shielded metal arc electrodes was also used to indicate "ease of use" for welder qualification. A welder that qualified using F1 electrodes was only qualified to use F1 covered electrodes, where as a welder that qualified using a F3 was qualified to use F3 or lower for production welding. The idea being the higher the F number (only true for F1 thru F4), the greater the skill required to use it.

The P numbers are similar to F numbers except they and the S numbers (P and S for ASME) or M numbers (AWS) group the base metals according to their primary base metal and alloying constituents.

Best regards - Al
Parent - By banshee35 (**) Date 07-12-2008 21:04
thats the info i was looking for, the f1 through f6. thank you.
Up Topic Welding Industry / Technical Discussions / definitions

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