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CHC308
Pure Nickel Electrode for Cast Iron |
AWS
5.15 ENi-CI
DIN ENi BG-22
ISO ENiG49
JIS DFCNi
GB EZNi-1 |
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Description:
CHC308
is a covered
welding rod with pure nickel core and graphitic coating for welding cast
iron. It is the best for repair welding cracked or worn castings and
surfacing welding, as well as joining cast iron parts with dissimilar
metals. The deposited metal is very good machinable and with a high
toughness and excellent crack resistibility. The rod must be baked at a
temperature 80℃-120℃for
1 hour before welding. In welding, lower current is recommended, meanwhile,
hammering the welded seam to dispel stress around the welding region and to
avoid crackles.
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Chemical
Composition of Deposited Metal(%)
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|
C |
Mn |
Si |
S |
Ni |
Al |
Cu |
Fe |
Others |
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Standard |
≤2.00 |
≤2.50 |
≤4.00 |
≤0.03 |
≥85 |
≤1.00 |
≤2.50 |
≤8.0 |
≤1.00 |
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Typical |
0.59 |
0.07 |
1.50 |
0.004 |
95.20 |
0.032 |
0.002 |
0.021 |
0.14 |
Sizes, Pieces & Recommended Current Range
(AC or DC+)
|
Size (mm) |
2.5 x 300 |
3.2 x 350 |
4.0 x 350 |
5.0 x 350 |
|
Pieces (2kg) |
≈122 |
≈63 |
≈42 |
≈27 |
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Current (A) |
60-90 |
90-110 |
120-150 |
150-180 |
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