Dual Shield R-70 Ultra is a low-fuming, high-deposition E70T-9 flux cored wire. It is tested and certified to meet the new AWS A5.20 ‘D’ designation requirements, making this gas-shielded wire an excellent choice for demand critical welds when FEMA 353, D1.1 or D1.8 Seismic Supplement is utilized.
This flux cored welding wire produces smoother arc characteristics and lower welding fumes than many competitive flux cored wires. Dual Shield R-70 Ultra is also designed to have a greater tolerance of mill scale and surface oxides. The notch toughness in the as welded condition is also improved. Bead contour is flat to slightly convex and slag coverage is complete. Dual Shield R-70 Ultra wire is designed for flat/horizontal single or multi-pass applications on low or medium carbon steels using 100% CO2 shielding gas. Areas of application include railcar, heavy equipment, and general fabrication.
Please see Related Links on the right side of this page to download the Seismic Data Sheet and Seismic Certifications.

| As Welded CO2 | |
|---|---|
| Yield Strength | 70 ksi, 485 MPa |
| Tensile Strength | 82 ksi, 565 MPa |
| Reduction in Area | 63 % |
| Elongation in 2" | 26 % |
| Typical Charpy V-Notch Impact Properties | |
| Testing Temperature 0ºF (-18ºC) | |
| As Welded CO2 | 28 ft.-lbs., 38 J |
| Testing Temperature -20ºF (-29ºC) | |
| As Welded CO2 | 25 ft.-lbs., 34 J |
| Typical Undiluted Weld Metal Analysis | |
| CO2 | |
| C | 0.02 % |
| Mn | 1.4 % |
| Si | 0.5 % |
| P | 0.014 % |
| S | 0.008 % |
CO2