Description:
E71T-8-H8 is a self-shielded, carbon steel, flux cored electrode. It is intended for the welding without a shielding gas of carbon and certain low alloy steels where excellent low temperature toughness is required. A fast freezing slag facilitates welding in all positions. It has a smooth globular transfer, excellent bead shape and easily removed slag. E71T-8-H8 is designed for structural applications such as bridge fabrication, ship and barge construction, as well as other general fabrication.
Classification & Approvals:
E71T-8-H8 per AWS A5.20, ASME SFA 5.20
E71T8-A2-CS3-H8 per AWS A5.36, ASME SFA 5.36
AWS D1.8 Seismic, CWB E491T-8-H8, ABS 3YSA, DNV IIIYMS
Advantages:
Operates on straight polarity (DCEN) with no external shielding gas.
Fast freezing slag facilitates excellent weldability in all positions.
Exhibits a smooth globular transfer, minimal spatter and easily removed slag.
Typical Mechanical Properties:
Ultimate Tensile Strength (psi) 87,000
Yield Strength (psi) 64,000
Percent Elongation 27
Typical Deposit Composition (wt%):
CMnSi P S Al
0.210.720.20 0.010 0.005 0.55
Recommended Welding Parameters (DCEN):
| Diameter | WFS | AMPERAGE | VOLTAGE | CTWD (IN.) |
| 1/16″ | 120 | 165 | 17-18 | 5/8 |
| 170 | 200 | 18-19 | 3/4 | |
| 220 | 235 | 20-21 | 1 | |
| 270 | 270 | 21-22 | 1 | |
| 350 | 310 | 23-24 | 1 | |
| .072″ | 125 | 185 | 18-19 | 3/4 |
| 175 | 220 | 20-21 | 1 | |
| 200 | 245 | 21-23 | 1 | |
| 225 | 265 | 22-24 | 1 | |
| 250 | 275 | 22-24 | 1 | |
| 5/64″ | 60 | 140 | 17-18 | 3/4 |
| 100 | 210 | 18-19 | 3/4 | |
| 150 | 255 | 21-22 | 1 | |
| 200 | 300 | 22-23 | 1 | |
| 250 | 330 | 23-24 | 1 |
*These parameters may be used in all positions. The ability to weld out of position at the higher current levels will depend on plate thickness and welder skill.
Wenzhou Tianyu Electronic Co., Ltd. was established in 2000. We have been engaged in the manufacturing of welding electrodes, welding rods, and welding consumables for more than 20 years.
Our main products include stainless steel welding electrodes, carbon steel welding electrodes, low alloy welding electrodes, surfacing welding electrodes, nickel & cobalt alloy welding electrodes, mild steel & low alloy welding wires, stainless steel welding wires, gas-shielded flux cored wires, aluminum welding wires, submerged arc welding. wires, nickel & cobalt alloy welding wires, brass welding wires, TIG & MIG welding wires, tungsten electrodes, carbon gouging electrodes, and other welding accessories & consumables.