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NIHONWELD N-NiCrMo-3
AWS Specification: AWS A5.11 ENiCrMo-3
JIS Specification:

NONE

Other Specification:

 

I. APPLICATIONS:

More common uses of N-NiCrMo-3 include the nuclear industry where it is used for pressure vessel superheaters, steam separators and tube plates. This electrode is commonly used in cryogenic installations; chemical and petrochemical applications; and for heat treatment and case hardening industrial furnace parts. More specific uses include joining Inconel® 625, 718, X-750 and 760 to 9% nickel steels; for welding Incoloy® 825 to carbon steel, stainless steel and low alloy steel; for joining Inconel® 625, Monel® K-500, Incoloy® 800 and 825 to Inconel® 706, 718 and X-750; and for joining Inconel® 825 and 800.I

     II. DESCRIPTION:

N-NiCrMo-3 is a nickel-chromium-molybdenum flux-coated electrode designed for shielded metal-arc welding of Inconel® 625 or 601, for high strength welds on 9% nickel steels and for overlaying carbon steel. N-NiCrMo-3 is also used for joining dissimilar combinations of steels or stainless steels to nickel-iron-chromium alloys such as Incoloy® 800 or 801.

      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

Nb&Ta

Cr

0.06

0.44

0.73

5.07

60.18

8.75

3.5

21.5

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Yield Point

N/mm2 (ksi)

Tensile Strength

N/mm2 (ksi)

Elongation

%

441 (64)

770 (112)

40

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.