Welding of high strength steel, heavy duty structural fabrication, fine grained, Q & T steel, pressure vessels, tanks, Penstocks.
1G 2F 3G 4G
E.I.L
1) Dry the electrodes at 250 – 300°C for 60 min before use.
2) Keep the arc as short as possble.
3) Adopt back step method or strike the arc on a small plate prepared for this particular purpose because arc stricking on the base metal is in danger of initating cracking.
| C% | Mn% | Si% | S% | P% | Cr% | Ni% | Mo% |
|---|---|---|---|---|---|---|---|
| 0.10 Max | 1.00 Min | 0.80 Min | 0.030 Max | 0.030 Max | 0.30 Min | 0.50 Min | 0.20 Min |
| U.T.S.(N/mm²) | Y.S.(N/mm²) | ELONGATION ( L = 4d ) % | CVN IMPACT AT – 50 o C ( J ) | Hydrogen(Mercury method) in 100grm weld meta | Reduction Area |
|---|---|---|---|---|---|
| 550 Min | 460 Min | 19 % Min | 40 Joules Min | 5 ml (Max) | 50 – 80 |
| SIZE ( mm ) | KG PER PACKET | KG PER CARTON | Current (Amps) | In Amps |
|---|---|---|---|---|
| 2.50 X 350 | 5 | 20 | AC/DC (+) | 70 – 90 |
| 3.15 X 350 | 5 | 20 | 90-120 | |
| 4.00 X 350 | 5 | 20 | 110-150 | |
| 5.00 X 350 | 5 | 20 | 150-200 |
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