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NHF-33CRS
AWS Specification: NONE
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

For hardsurfacing of parts subjected to heavy abrasion moderate impact as in sinter breaker plants, scraping beaks for zinc industry, blast furnace charging equipment, vegetable oil press screws for palm or coconut.

II. DESCRIPTION:

A low hydrogen hardsurfacing electrode with exceptional abrasion resistance with moderate impact at temperatures up to 600ºC. Easy to use in flat and inclined upward position. Low amount of slag. High deposition rate (235%) 

III.NOTES ON USAGE:

  • Preheat at 300ºC and over in general. Use NIHONWELD temperature indicating sticks or NIHONWELD interpass temperature gauge to determine if proper temperature is achieve before welding.

  • It is effective to postheat at 600ºC and to slow cool after welding to prevent cracking.

  • Dry the electrodes at 150 - 200ºC for 30-60 minutes before use. Use NIHONWELD portable drying ovens. 

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

 

C

Si

Mn

Cr

Mo

W

V

Nb

5.28

2.00

0.63

22.30

5.20

1.72

1.30

5.80

V.HARDNESS OF WELD METAL: 63-67 HRC (760-900 Hv)

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

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

 

Size (dia. mm)

3.2

4.0

5.0

Length (mm)

350

350

350

Current Range (Amp)

90 - 130

120 - 180

170 - 230

 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.