Chemical components

Product Description

E71T-11 is a self-shielded flux cored welding wire compliant with AWS A5.20 standards, designed for single and limited multi-pass welding of carbon and low-alloy steels. Featuring a composition with 0.12-0.25% carbon, up to 1.75% manganese, and controlled aluminum content, it provides weld metal with tensile strength of 480-660 MPa and excellent usability without external shielding gas. The "11" classification indicates a flux system optimized for general-purpose welding with improved arc stability and deposition efficiency. Compatible with DCEN (DC-) polarity, it offers versatile performance across a wide range of applications and thicknesses.

Features

▪ Self-Shielding Gasless Operation: The flux core generates complete shielding gas and slag protection, eliminating the need for external gas cylinders. Perfect for outdoor welding, field construction, and applications where gas handling is impractical.
▪ Versatile Thickness Range: Suitable for welding materials from thin sheet metal up to thicker sections, providing more flexibility than E71T-GS which is limited to thin gauges. The controlled arc characteristics allow good performance on various material thicknesses.
▪ Improved Mechanical Properties: Provides better overall mechanical properties compared to GS classification wires, with some products offering limited multi-pass capability and improved weld metal ductility and toughness for general structural applications.
▪ Excellent Arc Performance: Produces smooth, stable arcs with moderate spatter levels and easy slag removal. The flux system ensures good wetting and bead formation in all welding positions with proper technique.
▪ All-Position Welding: Performs effectively in flat, horizontal, vertical-up, and overhead positions. Amperage adjustments of 15-25% for vertical and overhead positions ensure consistent weld quality across all positions.

Applications

▪ Ideal for general-purpose gasless welding requiring better mechanical properties than GS wires, E71T-11 is widely used in:
▪ Light to Medium Structural Welding: Light structural frames, building construction, and fabrication projects requiring code-quality welds without gas shielding. Suitable for non-critical structural applications.
▪ Field Construction & Maintenance: Outdoor welding, bridge maintenance, field repairs, and construction projects where gasless operation is essential and weld quality requirements exceed GS wire capabilities.
▪ Agricultural & Equipment Repair: Farm equipment, machinery, and implement repairs requiring strong welds with good mechanical properties. Excellent for field repairs where power sources and gas availability may be limited.
▪ General Fabrication: Tanks, pipe supports, light structural components, and general fabrication requiring single-pass or limited multi-pass welding with gasless convenience and improved properties.