It is used for welding earth moving equipment’s. Steam turbine, rotors of chemical plants. Heavy machinery parts made of high tensile steel. Automotive parts and armour steel of Ni-Cr-Mo based.
1G 2F 3G 4G
1) Dry the electrode at 250 – 300 °C for 60 Min- before use.
2) Adopt back step method or strike the arc on a small steel plate prepared for this particular purpose.
3) Preheat at 100 – 150 °C The temp. varies in accordance with plate thikness and kind of steel.
| C% | Mn% | Si% | S% | P% | Cr% | Ni% | Mo% |
|---|---|---|---|---|---|---|---|
| 0.10 Max | 1.00 Min | 0.20 – 0.50 | 0.030 Max | 0.030 Max | 0.8 – 1.20 | 2.20 – 2.80 | 0.60–0.90 |
| U.T.S.(N/mm²) | Y.S.(N/mm²) | ELONGATION ( L = 4d ) % | IMPACT ( CVN ) AT R. Temp.(27 ± 2) |
|---|---|---|---|
| 690 Min | 600 Min | 16 % Min | 50 Joules Min |
| SIZE ( mm ) | KG PER PACKET | KG PER CARTON | Current (Amps) | In Amps |
|---|---|---|---|---|
| 2.50 X 350 | 5 | 20 | AC/DC (+) | 60 – 90 |
| 3.15 X 350 | 5 | 20 | 100-140 | |
| 4.00 X 350 | 5 | 20 | 140-180 | |
| 5.00 X 350 | 5 | 20 | 180-230 |