Chemical components

Product Description

E71T-GS is a self-shielded flux cored welding wire compliant with AWS A5.20 standards, designed for single-pass welding of thin carbon and carbon-manganese steels. Featuring a composition with 0.16-0.30% carbon, up to 1.75% manganese, and 1.3-1.8% aluminum, it provides excellent deoxidation without requiring external shielding gas. The "GS" suffix indicates "General Single Pass" classification, specifically optimized for thin-gauge materials from 20 gauge to 3/16" thickness. Compatible with DCEN (DC-) polarity only, it produces smooth, stable arcs with minimal burn-through risk on thin materials.

Features

▪ Self-Shielding Gasless Operation: The flux core generates its own shielding gas and slag protection, eliminating the need for external shielding gas. Ideal for outdoor welding, field applications, and situations where gas handling is impractical or too costly.
▪ Thin Material Welding: Designed specifically for thin-gauge steel (20 gauge to 3/16") with controlled penetration that minimizes burn-through. The DCEN polarity further reduces heat input, making it perfect for automotive body work and thin sheet metal applications.
▪ Excellent Arc Characteristics: Provides smooth, stable arc action with low spatter levels and easy slag removal. The aluminum-enhanced flux system ensures good wetting and bead appearance for single-pass fillet and lap welds.
▪ All-Position Capability: Welds effectively in flat, horizontal, vertical-up, and overhead positions with proper parameter adjustment. Typical amperage reduction of 25% in vertical and overhead positions ensures good weld quality.

Applications

▪ Ideal for single-pass welding applications requiring gasless operation on thin materials, E71T-GS is widely used in:
▪ Automotive Body Repair: Sheet metal body panels, automotive repair, and thin-gauge steel fabrication where burn-through must be avoided and gasless operation is preferred.
▪ General Fabrication & Maintenance: Farm equipment repair, tanks, fencing, light structural components, and general maintenance welding where portability and gasless operation are advantageous.
▪ Galvanized Steel Welding: Excellent performance on galvanized sheet metal, roofing materials, and coated steels where the flux core handles zinc coating effectively. Requires adequate ventilation due to zinc oxide fume formation.
▪ DIY & Hobby Welding: Perfect for home hobbyists, small portable 110V welders, and DIY projects requiring easy-to-use, gasless welding wire for thin steel applications.