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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 |
