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Electrodes for Low Temperature Service
SUPRATHERME(SPL)MOD-H4R
AWS: SFA 5.1 E7018-1H4R
EN ISO CODE:
Moisture resistant
hydrogen controlled basic coated electrode for producing tough and ductile weld
of radiographic quality in Boilers, Pressure vessels, Medium carbon steels,
Cast steel and problematic steels. The weld metal is clean and has low level of
impurities, thus having unique properties. The electrode can be used in all
conventional positions of welding. It is ideally suited for welding carbon
steels used in the construction of equipment subjected to heavy dynamic load,
impact and severe service conditions in sour gas service.
|
Element |
C |
Mn |
Si |
S |
P |
|
Percent |
0.06 |
1.40 |
0.30 |
0.010 |
0.015 |
|
UTS |
YS |
Elongation |
CVN Impact Strength
(J) |
|
(MPa) |
(MPa) |
(L= 5d)% |
at Minus 45°C |
|
540 |
430 |
29.0 |
80 |
CORROSION TESTS: The
weld metal meets the requirements as per NACE: TM-01- 77- 96 (SSCC) and
TM-02-84-96 (HIC)
DIFFUSIBLE HYDROGEN
CONTENT: 4 ml / 100 gms of weld metal Max
MOISTURE AS
CONDITIONED: 0.30 Max
O MOISTURE AS EXPOSED
(80% RH, 27 C FOR 9 HRS): 0.40 Max
ADVANTAGE: Electrodes
are Vacuum packed, no need of drying and can be used straight on the job.
|
Size (mm) |
5x450 |
4x450 |
3.15x450 |
2.5x350 |
|
Current Range (Amps) |
190-250 |
140-200 |
90-140 |
70-100 |
|
Qty. (Pcs./Carton) |
20 |
30 |
45 |
80 |
