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RAILHARD
AWS Specification: NONE
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

Surfacing of rail roads, rail frogs, and switches, rail ends mini rails, ropeways rollers, touch flank of large gear wheels and gear rims, guide pulley on caterpillar vehicles.

II. DESCRIPTION:

A basic low hydrogen electrode for surfacing of abrasion due to rolling friction.Applicable to steel with carbon content up to 0.45%. For higher carbon and alloy steels, apply a buffer layer of N-7016 to prevent cracking. Allow lateral weaving, hence broad, flat surfacing free of undercutting and spatter can be obtained. Its high deposition rate provide lower welding costs.

III. NOTES ON USAGE:

Use DC reverse polarity (DC+) or AC with minimum open circuit voltage (OCV) of 70V. Keep arc as short as possible. Preheating at 200ºC is recommended if carbon content exceeds 0.3%.

IV. HARDNESS OF WELD METAL DEPOSIT : 26-30 HRC (270-300 Hv)

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

 

C

Si

Mn

Cr

0.08

0.45

0.55

2.56

VI. WELDING POSITION: FLAT, FILLET, VERTICAL UP, OVERHEAD

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS ( 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.