Product Catalog

E71T-8-H8


Alloy Type:

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                                 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.

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