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NT-Ni55 / NM-Ni55
AWS Specification: AWS A5.15 ER NiFe-Cl
JIS Specification:

NA

Other Specification:

FOR CAST IRON

I. APPLICATIONS:

Welding large scale ductile cast iron, malleable cast iron or gray cast iron to themselves or to carbon and low alloy steel. Repairing thick, highly rust and weldments worn/broken parts and for salvages defective castings with higher tensile strength.

II. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):

 

C

Si

Mn

Cr

Ni

Fe

Cu

0.005

0.10

0.69

0.030

55.48

Bal

0.02

 

III. TYPICAL MECHANICAL PROPERTIES OF WELD METAL :

 

Tensile Strength N/mm2 (Ksi)

Yield Point

N/mm2 (Ksi)

Elongation %

407 (59)

538 (78)

10

 

IV. TIG AVAILABLE SIZES:

 

Dia.(mm)

1.6

2.4

3.2

Length (mm)

1000

1000

1000

Unit wt./packing (kgs.)

5

5

5

 

V. MIG AVAILABLE SIZES AND RECOMMENDED CURRENT:

 

Size (dia.x length) mm

Amps

0.8 x spool

50-120

1.0 x spool

65-140

1.2 x spool

75-170