N-CuMnNiAl

Specification
AWS Specification: AWS A5.6 ECuMnNiAl
JIS Specification: N/A
Other Specification: N/A
Description
  • N-CuMnNiAl is a manganese-nickel-aluminum bronze coated electrode that  possesses outstanding welding properties 
  • Weld metal displays high toughness
  • Crack resistant
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

Cu

Al

Fe

Si

Ni

Mn

Bal.

7.0 - 8.5

2.0 - 4.0

1.5 max.

1.5 - 3.0

11.0 - 14.0

 

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

386 (56)

655 (95)

27

180 - 190

 

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

DIAMETER (mm)

2.5

3.2

4.0

LENGTH (mm)

350

350

350

Current Amp

50 - 70

70 - 90

90 - 110


Welding Positions: FLAT, VERITCAL 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.

  • For welding cast ship propellers conforming to MIL-B-21230, Alloy 2 (AMPCO 495) for high resistance to corrosion, erosion, and cavitations
  • Joining and surfacing of complex aluminum-bronzes, especially those with high Mn, as well as steel and gray cast iron
  • Valves and pumps in the chemical industry where chemical attack is accompanied by erosion
  • Clean the weld zone thoroughly
  • Bigger workpieces are preheated to about 150-250ºC
  • Guide the electrode vertically and weave slightly
  • Use only dry electrodes
  • Re-dry at 150ºC for 2 - 3 hours

ABOUT US

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