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NIHONWELD N-NiMo-3
AWS Specification: ENiMo-3
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

N-NiMo-3 is most commonly used for jet engine repair and maintenance, gas turbine parts and rotor hubs.  This electrode will provide good mechanical properties up to 1800ºF, however it does exhibit poor oxidation resistance 1400ºF and it should not be used for service applications in excess of 750 hours. 

      II. DESCRIPTION:

N-NiMo-3 is a nickel-molybdenum flux-coated electrode designed specifically for welding Hastelloy® W to itself or to a variety of other alloys used in high temperature service applications. NIHONWELD N-NiMo-3 is excellent for joining dissimilar combinations of cobalt, nickel and iron-base alloys.

     III. NOTES ON USAGE:

 

  • Its weldability is as same as austenitic stainless steels.

  • Keep the interlayer temperature under 100ºC and cool it as fast as possible.

  • Keep the welding current as low as possible.

  • Dry the electrodes at 150 ~ 200ºC for 30 ~ 60 minutes before use.

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

 

C

Si

Mn

Fe

Ni

Mo

Cr

W+Co

0.09

0.80

0.80

5.50

Bal.

25.70

4.30

2.70

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Tensile Strength

N/mm2 (ksi)

Elongation

%

Hardness

689 (100)

26.5

95 HRB

VI. WELDING POSITIONS: FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS: AC/DC (+)

 

Size

(mm)

Dia.

3.2

4.0

5.0

Length

350

350

350

Current Range

Flat

70~110

100~150

130~180

Amp

Vertical & OH

65~105

95~140

-

 

TEST RESULT

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Industrial Welding Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and Test results for mechanical properties, deposit or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.