Check the listing for details. E71T-11 .030 Flux Core 2 lb Welding Wire MIG Spool Blue Demon. Condition: New. Listed at 16.85 USD. E71T-11 is a self-shielding flux cored wire used for welding carbon steels. This product does not require a shielding gas and can be used in limited multi-pass welding operations. The bead appearance is not equal to a gasshielded product, but the benefits of not having to use gas makes this product popular. E71T-11 operates on straight polarity only (DCEN). Typical Applications • Butt, lap and fillet welds on steel 16 gauge through 1/2" • Assembly and maintenance welding • Machine parts • Tanks • Prefab construction • Light structurals • Short assembly welds • Railroad car repairs AWS Specification AWS A5.20/A5.20M:2005 AWS Classification E71T-11 Welding Current DCEN (Electrode Negative, Straight Polarity) Typical Wire Chemistry C 0.30 Mn 1.75 Si 0.60 S 0.03 P 0.03 Cr 0.20 Ni 0.50 Mo 0.30 V 0.08 AI 1.8 Cu 0.35 Typical Mechanical Properties (As Welded) Yield Strength, ksi 58 Tensile Strength, ksi 70 - 95 Elongation%, min 20 Welding Positions F,H,V-down,OH Available Diameters and suggested Operating Range in Amps .030" 40 - 100 035" 100 - 130 .045" 140 - 180 1/16" 175 - 300