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- SUPRATHERME- H4R
Electrodes for Low Temperature Service
SUPRATHERME- H4R
AWS: SFA
EN ISO CODE:
Supratherme-H4R is a moisture resistant hydrogen controlled basiccoated electrode for producing tough and ductile weld ofradiographic quality in boilers, pressure vessels, medium carbonsteels, cast steel and problematic steels. The weld metal is cleanand has low level of impurities, thus having unique properties.Some typical applications include maintenance welding of all typesof C-Mn steels, heavy tensile steels, heavy structures, plants &equipments subjected to static or dynamic loading. TypicalApplications Include: • Coaches • Wagons • Penstocks • Boilers &Pressure vessels • Earth moving machines etc.
| Element | C | Mn | Si | S | P |
| Typical | 0.065 | 1.00 | 0.40 | 0.019 | 0.020 |
4 ml / 100 gms of weld metal Max
0.30 Max
0.40 MAX:
1.Restrict the heat input, use short arc and stringer bead.2.Re-dry the electrodes at 250°C for 1 hour, if expose to atmosphere.
