N-8018-B1

Specification
AWS Specification: AWS A5.5 E8018-B1
JIS Specification: N/A
Other Specification: N/A
Description
  • N-8018-B1 is a low hydrogen type electrode for all-position welding that provides a weld metal composition of 0.5% Cr - 0.5% Mo
  • Excellent crack resistance
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Cr

Mo

0.08

0.83

0.70

0.54

0.50

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
Yield Point
N/mm2 (KSI)
 
Tensile Strength
N/mm2 (KSI)
 
Elongation
%
 
PWHT
 

560 (81)

680 (99)

27

620°C x 1hr.

 

SIZE AND RECOMMENDED CURRENT RANGE: AC, DC (+)

DIAMETER (mm)

2.5

3.2

4.0

5.0

LENGTH (mm)

350

350

400

400

Current Amp

Flat

50 - 75

70 - 110

110 - 155

155 - 200

Vertical & Overhead

30 - 70

55 - 105

90 - 140

-


Welding Positions: ALL POSITIONS EXCEPT VERTICAL DOWN
Approvals: N/A

NOTE:

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.

  • Welding of 0.5% Cr - 0.5% Mo steel used for high temperature and high pressure boilers, chemical, and oil refining industries
  • Dry the electrodes at 325-375C for about one hour before use
  • Pre-heat at 125 - 250C and post-heat at 620 - 680C
  • Adopt back step method or strike the arc on a small steel plate to prevent blowholes at the arc starting
  • Keep the arc as short as possible

ABOUT US

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