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NIHONWELD N-8018-B2
AWS Specification: E8018-B2
JIS Specification:

NONE

Other Specification:

DIN ECrMo 1B20

I. APPLICATIONS:

Welding of Creep resisting steels CrMo type, e.g. BS 1501-620, 621 equivalent castings and forging.

II. DESCRIPTIONS:

N-8018-B2 is a basic coated hydrogen controlled electrode for low alloy and creep-resisting CrMo steels. Maximum operation temperature 550ºC. Suitable for welding of thick steam pipe and repairing of cast steel. Low spatter loss, ready slag detachment.

III. NOTES ON USAGE:

  • Preheating 200-250ºC.

  • Stree relieving 620ºC DC welding by preference.

  • Keep the arc as short as possible.

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

 

 

C

Si

Mn

Cr

Mo

0.06

0.61

0.7

1.32

0.55

V. TYPICAL MECHANICAL PROPERTIES OF DEPOSITED METAL:

 

Tensile Strength N/mm2 (Ksi)

Yield Point N/mm2

(Ksi)

Elongation %

PWHT

670 (97)

590 (86)

25

690°C x 1hr.

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

50 - 75

70 - 110

110 - 155

155 - 200

V & OH

30 - 70

55 - 105

90 - 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.