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Extra info for American Welding Society - User's Guide to Filler Metals
Sample text
The EXXT-G is for new multiple-pass electrodes which are not covered under anyof the presently defined classifications. Themultiple-pass properties canbeanything covered by these specifications. The slag system, arc characteristics, weld appearance, and polarity are not defined. 9 T-6 Electrode Classification. Electrodes of the T-6 classification are self-shielded, operate on dc with positive polarity, and have a spray-type transfer. The slag system is designed to give verygoodlow-temperature impact properties, deep penetration beyond the root of the weld, and excellent deep-groove slag removal.
Theseelectrodesare designed for low penetration beyond the rootof the weld, which enables them to be usedfor weldingjoints with poor fit-up and for single- and multiple-pass welding in theflat and horizontal positions. 3 T5 Electrode Classification. Certain T5 electrodesaredesignedtoweldon straight polarity with argon-C02 mixtures, for use in outby of-position welding. These electrodes are characterized a globulartransfer,slightlyconvexbeadconfiguration, and a thin slag that may not completely cover the weld bead.
3 The specification classifiestwelvedifferent types of flux cored electrodes. Each suffix (T-1, T-2, T-3, T-4, T-5, T-6, T-7, T-8, T-10, T-1 1, T-G, and T-GS) indicates a general groupingof electrodes which contain simDesignates m electrode. m witk WeClfiCd welding conditions. Il EX 1 h "te XT-X lndiites the primary welding position for which dectrode ir designed: E O - flat and horizontalpositions 1 - ail positions Indicatesuubilitv and performam wpabilities. Indiates a flux cored electrode. nelewr-X-u N-: i fipn in r k c v o d e c * o i ~ ~ r v t i o ninr UC specification ub*iauu h r rpcoifis d 6 ~ i g ~ t in id 0iu ~rodby hi figure.
