N-9018-B3

Specification
AWS Specification: AWS A5.5 E9018-B3
JIS Specification: DT 2418
Other Specification: KS ET2418
Description
  • N-9018-B3 is an all position, iron powder-low hydrogen electrode developed for welding 2.25% Cr-1% Mo steel, subjected to elevated temperatures such as those found in the power piping and boiler industries
  • Features extremely high deposition efficiency, producing X-ray quality weld deposits with mechanical properties that meet or exceed AWS-ASTM requirements
  • Provides a stable arc with low spatter
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

P

S

Cr Mo

0.08

0.50

0.77

0.014

0.011

2.25 1.02

 

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

680 (99)

750 (109)

21

690ºC x 1 hr.

 

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

DIAMETER (mm)

2.6

3.2

4.0

5.0

LENGTH (mm)

350

350

400

400

Current Amp

Flat

55 - 85

90 - 130

135 - 185

190 - 250

Vertical & Overhead

50 - 80

80 - 120

110 - 170

-


Welding Positions: ALL POSITIONS 
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.

  • Used in piping steels (A335-P22)
  • Boiler and heat excharger steel tubes (A199-T22, A200-T22, A213-T22)
  • Rolled steels (A387-D)
  • Cast steels (A217-WC)
  • Forged steels (A182-F22, 336-F22)
  • Dry the electrodes at 325-375C for about one hour before use
  • Pre-heat at 200 - 350C and post-heat at 680 - 730C
  • 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

For over 37 years, NIHONWELD has been the market leader of high quality welding electrodes in both the domestic and international markets. With Nihonweld, you will WELD WITH COMPLETE CONFIDENCE.
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