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NHF-716
AWS Specification: NONE
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS: 

Surfacing of parts, subject to severe abrasion but moderate impact. Sand slides, conveyor screws, mixing paddles, bucket edges, crusher jaws, digger teeth.

II. DESCRIPTION:

Extruded electrode with high deposit rate. Very little spatter losses, minimum dilution with the base metal, smooth seams. The deposit is corrosion and wear resistant. The chromium carbides are regularly distributed in the deposit.

III. NOTES ON USAGE:

Preheating is usually not necessary.  Grind weld area.  If necessary preheat at 200-400ºC.  Manganese steel must not be preheated and should be welded as cold as possible.  Apply 2-3 layers to develop full properties of weld deposits.  Small hair cracking might occur in certain steels is acceptable.

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

C

Mn

Si

Cr

Mo

V

2.70

0.15

0.7

25.2

2.05

0.60

V. HARDNESS OF WELD METAL: 55 – 60 HRC (600 – 710 Hv)

VI. WELDING POSITIONS: FLAT, OVERHEAD, HORIZONTAL

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

 

Diameter (mm

2.5

3.2

4.0

5.0

Length (mm)

350

350

350

350

Current Ampere

90

120

140

160

 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.