Electrode having a pure nickel core wire, designed for the welding of cast iron without or with low preheats (up to 300 C max). For repairing cracked or worn casting or joining cast iron parts to components made of steel, copper and nickel materials. Easy arc striking, stable arc, finely-rippled bead surface . Weld metal is machinable. Weld short beads (approx. 30 to 50 mm long). For reducing weld residual stresses hammer peen welds before cooling.
Weld metal analysis in % (typical values):
C
Ni
Fe
0.5
Base
2
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
400
200
5
140
Welding Parameters
Diameter (mm)
Length (mm)
Amperage (A)
2.5
250
50– 80
3.25
350
80– 110
4.0
350
110– 150
Materials:
Cast iron with lamellar graphite, white and black heart malleable cast iron, nodular cast iron.
