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Ni-55

AWS A5.15 ENiFe-Cl
ASME SFA 5.15 ENiFe-CI

Nickel 55 is designed for all-position joining and surfacing of cast iron,
malleable iron and ductile iron to itself or dissimilar metals such as mild steel, stainless steel, wrought alloys or high nickel alloys. A core wire chemistry of approximately 55% nickel and 45% iron produces weld deposits with much lower weld shrinkage stress which in turn reduces the possibility of weld or heat-affected zone cracking. Nickel 55 produces high strength, ductile weld deposits even when welding low grade cast iron containing excessive levels of phosphorus or other contaminants.

APPLICATIONS

Nickel 55 is especially suited for welding heavy sections such as motor blocks, housings, machine parts, frames, defective castings and building-up worn sections. Weld deposits are machinable and the deposit color will
approximate that of cast iron.

TYPICAL WELD METAL CHEMISTRY (%) 

C

0.058

Si

0.660

Mn

1.270

P

0.024

S

0.024

Fe

Balance

Cu

2.450

Ni

55.030

*Includes Cobalt (Co)

MINIMUM MECHANICAL PROPERTIES (as welded)

Tensile strength (psi)

70,000

Yield strength (0.2% offset) (psi)

53,000

Elongation in 2" (%)

6-12%

Brinell hardness

190

SIZES AND RECOMMENDED CURRENT RANGES* (AC/DC+)

 

Sizes

Amperage

3/32 (2.4mm) x 12"

50-80

1/8 (3.2mm) x 14"

80-120

5/32 (4.0mm) x 14"

110-114

3/16 (4.8mm) x 14"

130-170

*These settings are for flat or downhand positions. For overhead welding reduce 5-15 amps and for
vertical welding reduce 10-20 amps.

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