nihonweldnihonweldnihonweld

Printer Friendly Layout
NIHONWELD N-8018-W2
AWS Specification: AWS A5.5 E8018-W2
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

Welding of 50kgf/mm2 high tensile strength atmospheric corrosion resisting steels (COR-TEN 50A, B, C) and superior atmospheric corrosion resisting steels (COR-TEN O) for bridges, structures and rolling stock.

II. DESCRIPTIONS:

N-8018-W is a low hydrogen iron powder type electrode. Deposited metal contains copper, chromium and nickel and shows high resistance to atmospheric corrosion. Excellent crack resistance to atmospheric corrosion. Excellent crack resistance and mechanical properties due to its low hydrogen type coating make it suitable for welding medium and thick plates.

III. NOTES ON USAGE:

  • Dry the electrodes at 350-400°C for about one hour before for 30-60 minutes before use.

  • Adopt back step method or strike the arc on a small steel plate prepared for this particular purpose to prevent blowholes at the arc starting.

  • Keep the arc as short as possible.

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

 

C

Si

Mn

Cr

Ni

Cu

0.06

0.54

0.84

0.52

0.61

0.48

V. TYPICAL MECHANICAL PROPERTIES OF DEPOSITED METAL:

 

Yield Point

N/mm2 (ksi)

Tensile Strength

N/mm2 (ksi)

Elongation

%

Impact Value

°C, J (°F, Ft-Lbs)

540 (78)

640 (93)

27

-18°, 95 (0°, 70)

VI.  WELDING POSITIONS: ALL POSITIONS

VII. SIZES & RECOMMENDED CURRENT 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

55 - 85

90 - 130

130 - 190

200 - 240

Vertical, Overhead

50 - 80

70 - 110

100 - 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.