SUPERFLOW 71 (E71T-1)
AWS A5.20 CLASS E71T-1C/E71T-1M
E71T-1 is a special formulation flux cored
wire for single or multi-pass all position welds on
mild steels and 490N/mm2 (71,000 psi) class high
strength steels. E71T-1 is noted for its low
spatter, smooth arc and ease of slag removal. USA
E71T-1 has been designed to provide excellent
feed ability when used for all position welds of light,
medium and heavy thickness plates using 75-80%
Arbon + balance CO2 mixed shield gas.
Applications:
E71T-1 is used extensively in the fabrication
of bridge structures, pressure vessels, earth moving equipment, general construction, shipbuilding and whenever welds are required to meet structural and nuclear codes.
TYPICAL WELD METAL CHEMISTRY
(% – tested with 100% CO2 Shield Gas)
C | 0.03 |
Mn | 1.45 |
Si | 0.30 |
P | 0.015 |
S | 0.010 |
TYPICAL MECHANICAL PROPERTIES
OF WELD DEPOSIT
(As welded – tested with 100% CO2 Shield Gas)
Tensile strength (psi) | 72,000 psi |
Elongation in 2" (%) | 28% |
Yield point (psi) | 75,000 psi |
Charpy V-Notch impact | 75J (55 ft lbs at -18 degrees celsius) |