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NIHONWELD N-10018-M
AWS Specification: AWS A5.5 E10018-M
JIS Specification:

D7016

Other Specification:

KS D7018

I. APPLICATIONS:

Welding of 70kgf/mm2 class high tensile strength steel for pressure vessels, penstocks, bridges, offshore constructions and industrial machinery.

II. DESCRIPTIONS:

N-10018M is an iron powder low hydrogen type electrode for all-position welding. Its ustability and X-ray soundness are very good. It provides weld metal of good metal notch toughness and of high crack resistability.

III. NOTES ON USAGE:

  • Dry the electrodes at 300-350ºC for one hour before use.

  • Adopt back step method or strike the arc on a small steel plate prepared for this particular purpose because arc striking on the base metal is in danger of initiating cracking.

  • Keep the arc as short as possible.

  • Preheat at 100-150°C before use.

  • Pay attention not to exceed proper heat-input because excessive heat-input causes deterioration of impact values and yield strength of weld metal.

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

 

C

Si

Mn

Cr

Ni

Mo

0.07

0.46

1.35

0.14

1.63

0.28

V.  TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

Yield Point

N/mm2 (ksi)

Tensile Strength

N/mm2 (ksi)

Elongation

%

Impact Value

°C, J (°F, Ft-Lbs)

640 (93)

740 (107)

26

-51°, 70 (-60°, 52)

VI. WELDING POSITIONS: ALL POSITIONS

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

 

 

Dia. x length (mm)

2.5 x 350

3.2 x 350

4.0 x 400

5.0 x 400

Current Range (Amp)

Flat

70 - 100

90 - 130

135 - 185

190 - 250

Vertical, Overhead

60 - 90

80 - 120

110 - 170

 

 

 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 diffusible hydrogen levels 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.