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NIHONWELD N-8018-B2L
AWS Specification: AWS A5.5 E8018-B2L
JIS Specification:

DT2318

Other Specification:

DIN ECrMo1B26

 

I. APPLICATIONS:

Welding of 1.25% Cr-0.5% Mo steel used for superheater tubes and steam pipes for boilers of electric power plant and ships, oil refining equipments and high temperature synthetic chemical plants.

     II. DESCRIPTION:

N-8018-B2L is an iron powder low hydrogen type electrode and is suitable in all position. The limited carbon content in the weld metal is beneficial to reducing cracking in weldment. Both weldability and mechanical properties of its weld metal are excellent.

    III. NOTES ON USAGE:

 

  • Dry the electrodes at 325-375°C for about one hour before use.

  • Preheat at 150-300°C and post heat at 670-730°C.

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

 

C

Si

Mn

Cr

Mo

0.04

0.61

0.70

1.32

0.55

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Yield Point

N/mm2 (ksi)

Tensile Strength

N/mm2 (ksi)

Elongation

%

PWHT

590 (86)

670 (97)

25

690°C x 1 hr

VI. WELDING POSITIONS: ALL POSITIONS

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

 

Size

(mm)

Dia.

2.5

3.2

4.0

5.0

Length

350

350

400

400

 

Current

Flat

55-85

90~130

130~180

180~240

V & OH

50-80

80-115

110-170

150-200

 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.