SHIELD METAL ARC WELDING (SMAW)

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N-NiCrFe-2

Specification
AWS Specification: AWS A5.11 ENiCrFe-2
JIS Specification: N/A
Other Specification: N/A
Description
  • N-Ni-CrFe-2 is a nickel-chromium-iron flux coated electrode designed primarily for welding of Incoloy® 800 to itself or to 9% nickel steels
  • Used for welding a variety of dissimilar wrought or cast forms of carbon steel, austenitic and ferritic stainless steel, and nickel-chromium Inconel® 600 to themselves or to each other
  • Frequently used for joining Incoloy® 800 to high nickel alloys 200 and 201 or to nickel-copper Monel® 400 and K-500
  • Excellent for overlaying nickel-chromium alloy on steel 
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Fe

Ni

 Mo Cr Nb & Ta

0.04

0.15

2.90

8.05

Bal.

 2.24 15.90 2.78

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
Yield Point
N/mm2 (KSI)
 
Tensile Strength
N/mm2 (KSI)
 
Elongation
%
 
Impact Value
°C, J (°F, Ft-Lbs)
 

628 (91)

399 (58)

43

-196°, 93  (-132°, 69)

 

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

DIAMETER (mm)

3.2

4.0

5.0

LENGTH (mm)

350

350

350

Current Amp

Flat

70 - 110

100 - 150 

130 - 180

Vertical & Overhead

65 - 105

95 - 140

-

 

Welding Positions: FLAT, FILLET, 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.

  • Welding of 5% and 9% nickel steel transport or storage tanks used for cyrogenic products
  • Valve seats and gates
  • Coal gasification
  • Wet process desulphurization equipment
  • Chemical or petrochemical industries
  • Preheating is not necessary
  • Avoid continuous welding
  • Effective to weld under 150ºC for reduced cracking tendency
  • Dry the electrodes at 150 - 200ºC for 30 - 60 minutes before use

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