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Electrodes for Low Temperature Service
SUPRATHERME-Ni(SPL)H4R
AWS: SFA 5.5 E8018-G H4R
EN ISO CODE:
Supratherme-Ni(Spl)H4R is a basic coated, low hydrogen, moisture resistant, iron powder type electrode yielding a weld metal containing 1.5Mn and 0.7Ni. Excellent quality welds for welding heavy sections of fine-grained high strength steels with particular reference to low temperature service down to minus 50°C. Typical applications include welding of fine grained Q&T steels for pressure vessels, tanks, penstocks, where high strength and sub-zero temperature toughness properties are of importance.
| Element | C | Mn | Si | Ni | S | P |
| Percent | 0.08 | 1.50 | 0.40 | 0.70 | 0.015 | 0.016 |
| UTS | YS | Elongation | CVN Impact Strength (J) |
| (MPa) | (MPa) | (L= 4d)% | at Minus 50°C |
| 620 | 550 | 28.0 | 50 |
• As Conditioned : 0.20% Max.
• As Exposed : 0.40% Max. (27 C and 80% Relative Humidity for 9 Hours)
4.0 ml/100 gms of weld metal
Electrodes are Vacuum packed, no need of drying and can be used
straight on the job.
| Size (mm) | 5x450 | 4x350 | 3.15x350 | 2.5x350 |
| Current Range (Amps) | 170-240 | 140-170 | 100-130 | 70-90 |
| Qty. (Pcs./Carton) | 20 | 30 | 45 | 80 |
