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S-6027.LF
COVERED ELECTRODES FOR CARBON STEELS
AWS A5.1 / ASME SFA5.1 E6027
JIS Z3211 D4327
l Applications
S-6027.LF is low fume type electrode for highly efficient fillet welding, horizontal and flat fillet welding of ships, buildings, bridges.
l Characteristics on Usage
S-6027.LF is an iron powder oxide type electrode of which fume generation is about 30~50% lower than conventional electrodes.
S-6027 LF has excellent usability when used for manual welding, Gravity and auto-contact welding. Resistance to undercuts is good even in case of welding zinc-rich-painted plate or joint having gap.
l Notes on Usage
a) In case of manual welding, operate by contact welding.
b) In case of gravity welding, the optimum speed ratio is 1.2~1.5.
c) Dry the electrodes at 70~100℃ (158~212℉) for 30~60 minutes before use.
l Welding Position Current
AC or DC-
l Typical Chemical Composition of All-Weld Metal (%)
|
C |
Si |
Mn |
P |
S |
|
0.07 |
0.32 |
0.76 |
0.023 |
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) |
|
448 (65,100) |
499(72,500) |
32.0 |
-29(-20) |
47 (35) |
l Approval
KR, ABS, LR, BV, DNV, GL, NK,
l Packing
Packet 10kg ( 22 lbs )
Carton 10kg ( 22 lbs )×2 : 20kg (44 lbs)
l Sizes Available and Recommended Currents (Amp.)
|
Size mm (in) |
4.0 (5/32) |
4.5 (11/64) |
5.0 (3/16) |
5.5 (7/32) |
6.0 (15/64) |
6.4 (1/4) |
7.0 (9/32) |
|
Length mm (in) |
550(22) |
550(22) |
700(28) |
700(28) |
700(28) |
700(28) |
700(28) |
|
700(28) |
|||||||
|
F |
140~180 |
170~210 |
180~230 |
210~250 |
240~290 |
260~310 |
280~330 |
|
GW |
150~180 |
160~200 |
180-240 |
210~260 |
230~290 |
250~310 |
280~330 |
