Welding F Groups. Stone URS Flint M. These group numbers divide a P number to several group numbers for the purpose of welding procedure qualification when impact testing.
Ruof Bechtel Plant Machinery Incorporated J. Nickel and Nickel Alloys. 21 through F - No.
As mentioned by several of our community F1 through F4 are SMAW covered electrodes used on carbon and high strength low alloy steels.
ASME F Number. North Americas Largest Fleet of Welding and Positioning Equipment WELDING ELECTRODE CLASSIFICATIONS MILD STEEL COATED ELECTRODES E7018-X E Indicates that this is an electrode 70 Indicates how strong this electrode is when welded. Thomas Rocky Mountain Testing LLC G. Steel and Steel Alloys.