NHF-4340

Specification
AWS Specification: N/A
JIS Specification: N/A
Other Specification: N/A
Description
  • NHF-4340 is an all-position, low hydrogen electrode developed for the welding of heat-treatable, high strength steels, such as SAE 4130, 4330, 4340 and steel castings with similar hardening properties
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Cr

P S Ni

0.36

0.52

0.83

0.81

0.011 0.014 1.82

 

HARDNESS OF WELD METAL:
Hardness
Vickers (Hv)
Rockwell (HRC)

As Welded

270 - 300

27 - 30

 

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

DIAMETER (mm)

2.6

3.2

4.0

5.0

LENGTH (mm)

350

350

350

350

Current Amp

55 - 85

90 - 120

120 - 170

170 - 220


Welding Positions: FLAT, OVERHEAD, VERTICAL
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 and hardfacing of parts made from ASTM 4340 steels
  • Preheat weldments up to 204-316ºC with the same temperature held at interpass in order to prevent cracking

ABOUT US

For over 40 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.
Copyright © 2018 Industrial Welding Corporation
Web Design By WebToGo Philippines