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SC-70H Cored
FLUX CORED WIRE
AWS A5.20 / ASME SFA5.20 E70T-1/-9
JIS Z3313 YFW-C502M
l Applications
Flat & H-Fillet welding of building, shipbuilding, bridge construction, machinery, vehicle using mild and 490N/mm2 class high tensile steels.
l Characteristics on Usage
SC-70H Cored is a flux cored wire for Flat & H-fillet efficient welding with CO2 shielding gas.
As the deposition rate is very high, highly efficient welding can be performed.
Slag is uniform and easy to remove.
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) One-side welding defects such as hot cracking may occur with wrong welding parameter, such as high welding speed.
c) Use 100% CO2 gas.
d) 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 |
0.56 |
1.48 |
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) |
|
495 (71,900) |
580(84,200) |
27 |
-30 (-22) |
51 (27) |
l Approval
CWB, ABS, CCS,
l Packing (Including Ball Pac)
|
Dia.(mm) (in) |
1.6 |
2.0 |
2.4 |
Spool(kg) |
25 |
|
1/16 |
5/64 |
3/32 |
(lbs) |
55 |
|
|
Ball Pac |
|
||||
l Sizes Available and Recommended Currents (Amp.)
|
Size mm (in) |
1.6 (1/16) |
2.0 (5/64) |
2.4(3/32) |
|
F&HF |
300~400 |
350~450 |
400~500 |
