APPLICATIONS
Hot and cold welding of gray cast iron. The electrode is recommended for the welding of areas of difficult access. Joining and surfacing of machines, frames and housing of gray cast iron, bearing blocks, etc.
CHARACTERISTIC
A pure nickel electrode with non-conductive coating. Ignition does not occur upon contact between coating and workpiece. The electrode melts rather slowly and consequently the wetting on the base material is very good. The deposit is mechanically machinable.
NOTES ON USAGE
1.) Clean base metal before welding.
2.) If there is a possibility that cracking spreads, make the stopholes at both ends of repairing part.
3.) Keep bead length less than 50mm to disperse welding heat. Adopt back step, stepping stone or symmetry method by turns.
4.) Hot peen in every pass.
5.) It is not necessary preheating and postheating in general but satisfactory results can be obtained by preheating at 100-200ºC in accordance with kind, shape and size of base metal.
TYPICAL ANALYSIS OF ALL WELD DEPOSIT:
C |
Si |
Mn |
Fe |
Ni |
|
|
|
|
0.43 |
0.32 |
0.41 |
1.0 |
Bal |
|
|
|
|
TYPICAL MECHANICAL PROPERTIES OF ALL WELD DEPOSIT:
Tensile Strength
N/mm2 (Ksi) |
Elongation
(%) |
Hardness
Hv (HRB) |
340 (49) |
15 |
140-160 (75-80) |
RECCOMENDED CURRENTS: Ampere (AC/DC+)
Size |
Dia |
3.2 |
4.0 |
5.0 |
(mm) |
Length |
350 |
350 |
350 |
Current Range |
80-120 |
120-150 |
140-190 |
WELDING POSITIONS:
FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD
EXPORT Packing: 5Kg plastic container, then 4 5kg containers in master carton box
LOCAL Packing: 5Kg paper box in shrink wrapped plastic
Other special packaging can be accommodated as per request. |
