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NIHONWELD N-CuAl-A1
AWS Specification: ECuAl-A1
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

Structural joining, repair and surfacing of high manganese steel, tin bronzes (phosphor bronze) brass and copper, commonly used on ship propellers, turbines valves, thrust bearings, stirrer blades guides, suction rolls, and parts of hydraulic equipment, construction machines, fitting, instrument and pumps for the chemical paper industries. Dissimilar metals are also often joined with this electrode. Preheat copper base metal to 300ºC. Current DC or AC.

II. DESCRIPTION:

High alloyed bronze electrode contains aluminum nickel and manganese. The unique formula with the special coating making this electrode outstanding for a wide range applications.

     III. NOTES ON USAGE:

  • Preheat at 250~300ºC is increasing in the case of welding of brass.

  • The interlayer temperatures varies in accordance with the preheat temperatures.

  • Keep the arc length as short as possible and don’t use too much weaving.

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

 

Cu

Al

Si

Others

Bal.

6.0-8.5

0.10 max

0.50 max

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Yield Point

N/mm2 (ksi)

Tensile Strength

N/mm2 (ksi)

Elongation

%

Hardness

HB

193 (28)

470 (68)

32

100 - 120

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

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

 

Size

(mm)

Dia.

3.2

4.0

5.0

Length

350

350

350

Current Range Amp

70~130

110~150

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.