SUPRATHERME(SPL)H4R; AWS: SFA 5.1 E7018-1H4R; Electrodes for Low Temperature Service


Description

Supratherme(Spl)H4R is a 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. Some typical applications include maintenance welding of all types of C-Mn steels, heavy tensile steels, heavy structures, plants & equipments subjected to static or dynamic loading. Typical Applications Include: • Coaches • Wagons • Penstocks • Boilers & Pressure vessels • Earth moving machines etc.

Approvals
CE
BV
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
C Mn Si S P
Percent
0.05 1.30 0.25 0.015 0.015


TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL


UTS YS Elongation
CVN Impact Strength (J)
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 5d)%
at Minus 45°C
at Minus 40°C
540 460 29.0
80
100

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.x


CURRENT & PACKING DATA: AC / DC (+)


Size (mm)
5x450 4x450 3.15x450
2.5x350
Current Range (Amps)
200-280 150-180 100-135
80-100
Qty. (Pcs./Carton)
2 2 2 2

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