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- NITHERME-2.5(SPL) H4R
Electrodes for Low Temperature Service
NITHERME-2.5(SPL) H4R
AWS: SFA 5.5 E7018-C1L
EN ISO CODE:
A low hydrogen electrode yielding low carbon, 2.5% Ni in the weld deposit. It is ideally suited for welding fine-grained steels and Ni steels especially for service temperatures down to minus 75°C. The weld metal possesses strength combined with excellent sub-zero temperature notch toughness. Typical applications include storage tanks, pressure vessels, containers and piping for liquefied gases like propane and butane.
| Element | C | Mn | Si | P | S | Ni |
|---|---|---|---|---|---|---|
| Percent | 0.04 | 0.80 | 0.30 | 0.018 | 0.018 | 2.40 |
(PWHT: 605°C FOR 1 HR)
|
UTS (MPa) |
YS (MPa) |
Elongation (L=5d) % |
CVN Impact Strength at Minus 75°C (Joules) |
|---|---|---|---|
| 520 | 410 | 26.0 | 35 |
|
Size (mm) Dia x Length |
5x450 | 4x350 | 3.15 x 350 | 2.5 x 350 |
|---|---|---|---|---|
| Current Range (Amps) | 210-270 | 150-190 | 100-135 | 80-100 |
| Qty. (Pcs. /Carton) | 35 | 55 | 75 | 125 |
1. Re-dry the electrodes at 250-300°C for one hour.
2. Restrict the heat input to a minimum during welding to achieve better properties.
Electrodes are vacuum packed no need of redrying & can be used straight on the job.
Moisture as Conditioned: 0.3Max
Moisture as Exposed: 0.4Max
