Welding of Penstocks, Earth moving equipment’s , Heavy duty structure made from high tensile steel , Petrochemicals Tanks & Vessels.
1G 2F 3G 4G
1) Dry the electrodes 250 – 300oC for 60 minutes befor use
2) Preheat at 150 – 200 °C
3) Keep toe are as short as possible
| C% | Mn% | Si% | S% | P% | Cr% | Ni% | Mo% |
|---|---|---|---|---|---|---|---|
| 0.10 Max | 1.30 -2.25 | 0.60 Max | 0.030 Max | 0.030 Max | 0.30-1.50 | 1.75 – 2.50 | 0.30 –0.55 |
| U.T.S.(N/mm²) | Y.S.(N/mm²) | ELONGATION ( L = 4d ) % | IMPACT ( CVN )AT – 50 o C ( J) |
|---|---|---|---|
| 830 Min | 745-830 | 18 % Min | 27 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 | 180-250 | |
| 6.30 x 450 | 230 – 280 |
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