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S-7028.F
COVERED ELECTRODES FOR HIGH TENSILE STEELS
AWS A5.1 / ASME SFA5.1 E7028
JIS Z3212 D5026
l Applications
S-7028.F can be used for highly efficient-welding of flat and horizontal fillet such as welding of high tensile steel of ships, bridges and building.
l Characteristics on Usage
Applications
This electrode is intended for applications requiring the characteristics of the high deposition rate associated with iron-powder coating.
l Notes on Usage
a) Dry the electrodes at 350~400℃ (662~752℉) for 60 minutes before use.
b) Remove rust, water and oil from the surface to be welded before welding.
l Welding Position Current
AC or DC+
l Typical Chemical Composition of All-Weld Metal (%)
|
C |
Si |
Mn |
P |
S |
|
0.07 |
0.29 |
1.08 |
0.027 |
0.015 |
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) |
|
478(69,400) |
546(79,300) |
32.0 |
-20(-4) |
63 (47) |
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 |
150~220 |
170~220 |
190~250 |
220~280 |
260~320 |
270~340 |
330~360 |
