SHIELD METAL ARC WELDING (SMAW)

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NC-50S

Specification
AWS Specification: AWS A5.15 ENiCl
JIS Specification: DFC NiFe
Other Specification: DIN ENi-G4
Description
  • NC-50S is a counterpart of NC-50 with high hardness due to addtion of Mn
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Fe

Ni

0.85

0.60

2.50

0.80

Bal.

 

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

510 (74)

20

220

 

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

DIAMETER (mm)

3.2

4.0

5.0

LENGTH (mm)

350

350

350

Current Amp

80 - 120

120 - 150

140 - 190

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.

  • For repair of cast iron housing blocksand all application of NC-50 where higher tensile and harder deposit are required
  • Clean base metal before welding
  • Keep bead length less than 50mm to disperse welding heat. Adopt back step, stepping stone, or symmetry methods by turns
  • Hot peen in every pass
  • It is not necessary to preheat and postheat in general but satisfactory results can be obtained by preheating at 100-200ºC in accordance with the kind, shape, and size of base metal

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