Handbook - Cored Wire Products

1 DUAL SHIELD^® and CORESHIELD^® Flux Cored Wires Dual Shield — Gas Shielded Flux Cored Wires Dual Shield wires are of a tubular construction and gain their name by the fact that the arc is shielded from the atmosphere by both the shielding gas and the protective slag which forms over the weld as the wire is consumed. The required shielding gas may be either straight CO₂ or a mixture of argon and CO₂ as specified in the listings that follow. Dual Shield wires are available for welding a wide variety of carbon and low alloy steels. Coreshield — Self-Shielded Flux Cored Wires Coreshield wires require no external shielding gas. The shielding is generated by the core ingredients making these wires more suitable for outdoor operation. They are available for welding carbon steels and galvanized steels. Dual Shield and Coreshield wires are covered by AWS Specification A5.20 and A5.29 on the following pages.