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SF- 70MX
FLUX CORED WIRE
AWS A5.20 / ASME SFA5.20 E70T-1
JIS Z3313 YFW-C50DM
l Applications
As a metal cored wire, it is designed for high productive welding of structural steels in excess of 6mm.
l Characteristics on Usage
This wire benefits from a high deposition rate with very low spatter loss. It gives excellent penetration and good arc stability.
l Notes on Usage
a) 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.
b) Use 100% CO2 gas.
c) Refer to page 168 for storage instructions.
l Welding Position (Flat & Horizontal fillet)
Current Shielding Gas
DC+ CO2
l Typical Chemical Composition of All-Weld Metal (%)
|
C |
Si |
Mn |
P |
S |
|
0.05 |
0.50 |
1.50 |
0.014 |
0.013 |
l Typical Mechanical Properties of All-Weld Metal
|
Y.S N/mm2 (lbs/in2) |
T.S N/mm2 (lbs/in2) |
EL. (%) |
Temp. ℃(℉) |
CVN-Impact Value J (ft·lbs) |
|
560 (81,300) |
590(85,700) |
28 |
0 (32) |
60 (44) |
l Approval
KR, ABS, LR, BV, DNV, GL, NK, CCS, CRS
l Packing (Including Ball Pac)
|
Dia.(mm) (in) |
1.2 |
1.4 |
1.6 |
Spool(kg) |
12.5 |
15 |
20 |
|
0.045 |
0.052 |
1/16 |
(lbs) |
28 |
33 |
44 |
|
|
Ball Pac |
|
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l Sizes Available and Recommended Currents (Amp.)
|
Size mm (in) |
1.2 (0.045) |
1.4 (0.052) |
1.6 (1/16) |
|
F&HF |
250~300 |
300~350 |
300~350 |
