A Basic coated 2.50% Ni alloyed electrode for welding low ally steels.
CLASSIFICATION : AWS/SFA-5.5: E 8018 C1
IS-1395: E 55BC 126Fe
CHARACTERISTICS : A medium coated Hydrogen controlled, basic coated iron powder type electrode presence of Mn & Ni in appropriate proportion imparts to weld a high degree of low temperature notch toughness. The weld deposit controlled 2.50% Ni which imparts good resistance to brittle fracture down to -59°C.
APPLICATION :
1) Suitable for fabrication of LNG storage tanks.
2) Liquified gases, cryogenic vessels, to weld 2.25% Ni steels, oil refinery valves, pressure
vessels.
3) Construction of components to be subjected to low temperature service in petrochemical industries.
RE-DRY CONDITION : Re-Dry the electrode at 300°C for 1 hrs, for best results..
| C | Mn | Si | Ni | S&P |
| 0.12 max. | 0.80-1.25 | 0.60 max | 2.00-2.75 | 0.025 Max. |
| YS (N/mm²) |
UTS (N/mm²) |
EL % (l=4xd) |
CHARPY “V” NOTCH IMPACT AT |
| 460-560 | 550-650 | 22-28 | Minus 60°C :50-100 Jouls |
| Size(mm) (DXL) | Size(inch) (DXL) | Current Condition (DC+/AC70V)Amps | No. of Pcs./pkt. | No. of Pcs./Case |
| 2.50/ 2.40 X 350 | 3/ 32” X 14” | 70-110 | 170 | 640 |
| 3.15/ 3.20 X 450 | 1/ 8” X 14”/ 18” | 110-130 | 110 | 440 |
| 4.00 X 450 | 5/ 32” X 18” | 150-180 | 72 | 288 |
| 5.00 X 450 | 3/ 16” X 18” | 190-230 | 50 | 200 |
