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NIHONWELD N-8018-C3
AWS Specification: AWS A5.5 E8018-C3
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

Cor-ten, Mayari R, LT75, N-A-Z High Tensile, V-55, Yoloy HS, military and commercial applications.

II. DESCRIPTIONS:

N-8018-C3 is a 1% nickel, low hydrogen, iron powder electrode used for welding high strength steels in the 70-80,000 psi tensile strength range. This electrode  offers high deposition efficiency, producing excellent quality of weld weld deposits with good impact properties even at temperatures as low as -60°C. N-8018-C3 is also used for fillet welds on high strength quenched and tempered steels such as ASTM A514 and A517. N-8018-C3 may be used in any position with AC or DC (reverse polarity).

 

III. NOTES ON USAGE:

  • Dry the electrodes at 350-400°C for about one hour before use and store the electrodes at 100-150°C after drying them with attention to keep away from moisture

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

  • Keep the arc as short as possible.

  • Preheat at 100-150°C. The temperature to be applied varies in accordance with plate thickness and kind of steel to be welded.

  • 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

Ni

0.07

0.45

0.91

1.03

V. TYPICAL MECHANICAL PROPERTIES  OF DEPOSITED METAL: AT 620°C , 1 HR

 

Tensile Strength N/mm2 (Ksi)

Yield Point N/mm2

(Ksi)

Elongation %

Impact Value

Deg C, J (Deg F, Ft-lbs)

600 (87)

530 (77)

31

-40°, 60 (-40°,44)

VI. WELDING POSITIONS: ALL POSITIONS

VII. SIZES & RECOMMENDED CURRENT RANGE: AC or DC (+) 

 

Diameter (mm)

 

2.5

3.2

4.0

5.0

Length (mm)

 

350

350

400

400

Ampere

Flat

65 - 90

90 - 130

135 - 185

190 - 250

V & OH

60 - 90

80 - 120

110 - 170

160 - 210

 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.