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NHF-43
AWS Specification: NONE
JIS Specification:

NONE

Other Specification:

DIN-E10-UM-65-GR

I. APPLICATIONS:

Applications for hardsurfacing of crusher parts, refractory press screws, cement press screws, palm nut press screws, coconut press screws, etc…

II. DESCRIPTION:

A low hydrogen hardsurfacing electrode with deposition rate (190%). Suited for parts subjected to heavy abrasion and metal-to-metal wear with moderate impact. Easy to manipulate in horizontal-vertical positions. The weld deposit can retain its properties at temperature not exceeding 450ºC.

III. NOTES ON USAGE:

  • Preheat at 150ºC and over in general

  • In case of multi-layer build-up welding and welding mother plates with hardening property, under-lay with low hydrogen type electrodes for mild steel.

  • Dry the electrodes at 300-350ºC for 30-60 minutes before use.

  • Clean weld area properly before welding. Keep a medium long arc. Oscillation of the electrode with an amplitude up to 3-4 times the nominal diameter results in very regular and smooth beads. The full properties of the alloy is obtainable in two layer deposits. 

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

 

C

Cr

Nb

Mn

6.00

23.00

7.00

0.74

V. HARDNESS OF WELD METAL: 60 63 HRC (700 – 780 Hv)

VI. WELDING POSITIONS: FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD

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

 

Dia. (mm)

3.2

4.0

5.0

 

Length (mm)

350

350

350

 

Amp.

F

90-130

140-180

190-240

 

 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.