SHIELD METAL ARC WELDING (SMAW)

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NC-NiCu-B

Specification
AWS Specification: AWS A5.15 ENiCu-B
JIS Specification: N/A
Other Specification: N/A
Description
  • NC-NiCu-B is a basic graphite special coated electrode with NiCu-alloyed core wire
  • Particularly suitable for safe cold welding of grey cast iron, cast steel, and malleable cast iron
  • Color of the weld deposit is similar to cast iron
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Cu

Ni

0.68

0.52

0.45

28.50

Bal.

 

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

168 (24)

18

140 - 160 (75 - 80)

 

SIZE AND RECOMMENDED CURRENT RANGE: AC, DC (+)

DIAMETER (mm)

2.5

3.2

4.0

LENGTH (mm)

300

350

350

Current Amp

50 - 80

70 - 110

100 - 140

Welding Positions: ALL POSITIONS EXCEPT VERTICAL DOWN
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.

  • Primarily used for filling up the cavities of various cast iron
  • Repair of casting or machining defects on new castings
  • Thoroughly clean the surface of the workpiece and make sure it is clear from grease
  • When welding cast iron, heat input should be as low as possible (low amperage)
  • Bead must not be wider than twice the core wire diameter and not be longer than ten times the core wire diameter
  • To limit internal stress of the base metal, peening of the beads is recommended after each pass

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