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NT-CuNi / NM-CuNi
AWS Specification: AWS A5.7 ER CuNi
JIS Specification:

Equivalent to MONEL FM67

Other Specification:

FOR NICKEL ALLOYS

I. APPLICATIONS:

For excellent resistance to sea water corrosion. Used in marine

and desalination applications.

II. DESCRIPTIONS:

NT-CuNi/NM-CuNi alloyed wire/rod for joining and surfacing similar

alloys with a nickel content up to 30% and for different steels. 

 

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

C

Si

Mn

Cu

Ni

Ti

Fe

0.04 max

0.25 max

1.0 max

Bal.

29.0-32.0

0.20-0.50

0.40-0.70


IV. TYPICAL MECHANICAL PROPERTIES OF WELD METAL :

 

Tensile Strength N/mm2 (Ksi)

Elongation %

345 (50)

29

V. TIG AVAILABLE SIZES:

 

Dia.(mm)

1.6

2.4

3.2

Length (mm)

1000

1000

1000

Unit wt./packing (kgs.)

5

5

5

VI. 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