WELDING FLUX CORED WIRE AWS E-71T "HYUNDAI"

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Korea (South)

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SF-71 AWS A5.20 / ASME SFA5.20 E71T-1
JIS Z3313 YFW-C50DR
All position welding of building, shipbuilding, bridges, machinery and vehicles.
Applications
Characteristics on Usage
Notes on Usage
DC
Welding Position (All-Position) Current
CO2
Shielding Gas
Dia. (mm) 1.0 1.2 1.4 1.6 Spool (kg) 5 12.5 15 20
(in) .039 .045 .052 1/16 (lbs) 11 28 33 44
Ball Pac
KR, ABS, LR, BV, DNV, GL,
NK, TÜV, CWB, Ü-SIGN,
CCS, CRS
Approval Packing (lncluding Ball Pac)
Sizes Available and Recommended Currents (Amp.)
Size mm (in)
F & HF
V-up, OH
V-down
1.2 (.045) 1.4 (.052) 1.6 (1/16)
120~300 200~400 200~450
120~260 180~280 180~280
200~300 220~320 250~300
SF-71 is a titania type flux cored wire for all position welding with CO2. Compared with solid
wire, spatter loss is low, bead appearance is beautiful and arc is soft with good stability. Slag
covering is uniform with good removal.
Proper preheating(50~150°C)(122~302 ) and interpass temperature must be used in order to
release hydrogen which may cause cracking in weld metal when electrodes are used for
medium and heavy plates.
One-side welding defects such as hot cracking may occur with wrong welding parameter such
as high welding speed.
Use 100% CO2 gas
Refer to page 168 for storage instructions.
Typical Chemical Composition of All-Weld Metal (%)
C Si Mn P S
0.04 0.49 1.29 0.010 0.009
Typical Mechanical Properties of All-Weld Metal
Y.S T.S EL. Temp. CVN-Impact Value
N/mm2 (lbs/in2) N/mm2 (lbs/in2) (%) ( ) J (ft lbs)
548 (79,600) 582 (84,500) 28 0 (32) 86 (64)
165
FLUX CORED WIRE
164
FLUX CORED WIRE
Supercored 71 AWS A5.20 / ASME SFA5.20 E71T

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