Electrode having a pure nickel core wire, designed for the welding of cast iron without or with low preheats (up to 300°C max). The weld metal has a low coefficient thermal expansion and therefore little shrinkage. It feature higher strength properties than pure nickel weld metal and therefore preferred for joining nodular cast iron, white and black heart malleable cast iron and austenitic nodular cast iron or for joining these materials to components made of steel, copper and nickel materials. Easy arc striking, stable arc, finely-rippled bead surface are some properties of this electrode. weld metal is machinable. Weld short beads.
Weld metal analysis in % (typical values):
C
Ni
Fe
0.5
53
Remainder
Mechanical Properties of all-weld metal:
(single values are typical values)
Tensile Strength ( N/mm 2 )
Yield Strength %0/2 ( N/mm 2 )
Elongation A5 (%)
Brinell hardness HB 10/3000
450
300
10
170
Welding Parameters
Diameter (mm)
Length (mm)
Amperage (A)
2.5
250
60– 90
3.25
300
90– 110
4.0
350
130– 170
Materials:
Nodular cast iron, white and black heart malleable cast iron, austenitic nodular cast iron, joining of cast iron to steel.
