It is used for welding the clab side of joints in steel clad with a Nickel – Copper alloy and for surfacing steel with Nickel –
Copper alloy weld metal to obtain a corrosion resistant surface. It is also used for fabrication and welding for the Nickel –Copper base material like ASTM – B127, B 163, B 164, and B 165 all of which have UNS No. 4400.
Vaccum packing
1G 2F 3G 4G
1) Chip off base metal completely at the repairing part .
2) There is possiblity that cracks spreads or makes holes at both ends of repairing part .
3) Keep the weld metal length less than 50 mm (2 inch ) to disperse welding heat- adopt back steping stone or symmetry method by turns.
4) The preheat temprature vary in accordance with te size ,king and
shape of the base metal150°C is
appropriate in general .
| C% | Mn% | Si% | S% | P% | Ni% | Cu% | Fe% |
|---|---|---|---|---|---|---|---|
| 0.15 Max | 4.00 Max | 1.50 Max | 0.015 Max | 0.020 Max | 62 – 69 | Balance | 2.50 Max |
| U.T.S. (N/mm²) | ELONGATION |
|---|---|
| 480 Min | 30 % Min |
| SIZE ( mm ) | KG PER PACKET | KG PER CARTON | Current (Amps) | In Amps |
|---|---|---|---|---|
| 2.50 x 350 | 2 | 10 | DC (+) | 40-60 |
| 3.15 x 350 | 2 | 10 | 60 – 80 | |
| 4.00 x 350 | 2 | 10 | 100 – 140 | |
| 5.00 x 350 | 2 | 10 | 140 – 190 |