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NIHONWELD N-CuSi
AWS Specification: ECuSi
JIS Specification:

DCuSiB

Other Specification:

I. APPLICATIONS:

N-CuSi flux coated electrodes are used for welding or building-up silicon bronze as other copper alloys. It is an excellent choice for applications involving cast iron to steel where the part is exposed to corrosives. N-CuSi is commonly used on bronze impellers, bronze wear plates, hydraulic piston overlays, track wheels, gears, sprockets, and quite often farm implements. Should be beveled and preheated up to 500ºF depending on the thickness of the part. Thin sections do not require preheating. Maintain a medium arc length and deposit stringer beads in groove or overlay welding and use weave beads for rapid overlays, large areas and for welding ferrous metals. Peen the weld deposit and remove slag between passes.

     II. DESCRIPTION:

N-CuSi performs well in any position utilizing AC as well as DC machines. N-CuSi weld deposits are strong, ductile and crack resistant-even welding on dirty, oily, burned cast or maliable pars. The high silicon content of this electrode allows it to be used as a welding or brazing electrode.

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

 

Cu

Fe

Si

Sn

Mn

Pb

Others

Bal.

0.50 max

2.4-4.0

1.5 max

1.5 max

0.02 max

0.50 max

IV. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Yield Point

N/mm2 (ksi)

Tensile Strength

N/mm2 (ksi)

Elongation

%

Hardness

HB

250 (36)

420 (61)

25

80-100

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

VI. SIZES AVAILABLE AND RECOMMENDED CURRENTS: DC (+)

 

Size

(mm)

Dia.

3.2

4.0

5.0

Length

350

350

350

Current Range Amp

70-110

100-150

140-180

 

 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.