N-Cu 39

Specification
AWS Specification: AWS A5.6 ECu
JIS Specification: N/A
Other Specification: N/A
Description
  • N-Cu 39 yields a poreless, well-deoxidized crack proof weld metal
  • High corrosion resistant equivalent to that of the best commercial copper grades
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

Cu

Si

Sn

P

Mn

Others

98.00 min.

0.50 max.

1.00 max.

0.15 max.

0.50 max.

0.50 max.

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
Tensile Strength
N/mm2 (KSI)
 
Elongation
%
 
Hardness HB

200 (29)

29

50 - 55

 

SIZE AND RECOMMENDED CURRENT RANGE: DC (+)

DIAMETER (mm)

3.2

4.0

5.0

LENGTH (mm)

350

350

350

Current Amp

80 - 130

130 - 180

180 - 230


Welding Positions: FLAT, VERTICAL UP, HORIZONTAL, OVERHEAD
Approvals: N/A

NOTE:

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.

  • Suitable for joining and surfacing all commercial pure copper grades
  • Clean welding zone thoroughly
  • Preheat copper to 400 - 600 degrees C depending on the wall thickness and keep temperature during welding
  • Keep the arc short with steep (vertical up) electrode guidance
  • Choose the biggest possible diameter of electrode
  • Re-bake electrode at 150 degrees C for 2 - 3 hours

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