Cast Iron Welding Electrode Z308 Z408 Z508

CAST IRON WELDING ELECTRODE Z308 (AWS ENi-C1, GB EZNi-1)


Description
Z308 is a pure nickel welding core, strong reducibility of graphite type coated cast iron electrode, when welding, weldments don't need to be preheated, with good crack resistance and processability. Nickel is expensive, should be chosen in other rods cannot be met. AC/DC.

Application
used for repairing thin pieces of cast iron welding and machining surfaces, such as engine blocks, machine guides, gear housing and other important gray cast iron.
      
Typical chemical composition of deposited metal (%)
Chemical
C
Mn
Si
S
Ni
Fe
Others
%
≤2.00
≤1.00
≤2.50
≤0.030
≥90
≤8
≤1.00

Diameter (mm)
φ2.5
φ3.2
φ4.0
φ5.0
WELD CURRENT(A)
50~100
70~120
110~180
160~190

Notes:
1. Electrodes shall be baked about 150 ºC for 1h before welding
2. You can eliminate welding stress by hammering the weld area, to avoid cracks.



Cast iron electrode model/application
Type
GB Model
Coating type
Welding current
Main ingredient of welded joint
Main application
Z100
EZFe
Oxidability
AC/DC
Carbon steel
Generally used for repairing non-machined surface of cast iron, can weld old ingot molds, etc., cannot be cutting after welding
Z116
EZV
Low hydrogen type
AC/DC
high-vanadium steel
Used for welding cast iron parts, such as cylinder, rack gear box etc., can also be used for welding high-strength cast iron and ductile iron castings. Weldments don't need to be preheated, it can be cutting when multi-processing, but processability is not as good as nickel-based electrode.
Z117
EZV
Low hydrogen type
DC
Z122Fe
EZFe-2
Titanium calcium type
AC/DC
medium carbon steel
For welding all kinds of non-machined surface of gray cast iron
Z208
EZC
Graphite
AC/DC
cast iron
For welding the defect of gray cast iron
Z238
EZCQ
Graphite
AC/DC
nodular cast iron
For repair welding nodular cast iron
Z248
EZC
Graphite
AC/DC
cast iron
Welding for gray cast iron, especially for welding large gray iron castings
Z258
EZCQ
Graphite
AC/DC
nodular cast iron
Welding for ductile iron castings, especially for larger ductile iron welding
Z268
EZCQ
Graphite
AC/DC
Welding for a variety of ductile iron, can also be used for welding high strength gray cast iron
Z308
EZNi-1
Graphite
AC/DC
pure nickel
Welding for  important gray iron castings and machining surfaces, such as cylinder heads, engine blocks, gear boxes, Machine Tool, etc.
Z408
EZNiFe-1
Graphite
AC/DC
Ferro-nickel
Welding for important high strength gray iron and ductile iron , such as cylinders, gears, engine blocks, etc.
Z438
EZNiFe-1
Graphite
AC/DC
Welding for ductile iron, high-strength cast iron processing and non-processing surfaces
Z508
EZNiCu-1
Graphite
AC/DC
nickel-copper
Welding for good workability, appropriately used for welding grey cast iron machining surface which strength requirement is not high
Z607
-
Low sodium hydrogen type
DC
Copper-iron
Welding for general gray cast iron with non-machined surface
Z612
-
Titanium calcium type
AC/DC

Packing
1kg/plastic box, 10kgs/box, 1000kgs/pallet
5kgs/plastic box, 20kgs/box, 1000kgs/pallet
We also accept packing according to customer's requirement.





    For more details of our welding electrodes, please feel free to contact us.