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NIHONWELD NSS-347
AWS Specification: E347-16
JIS Specification:

D347-16

Other Specification:

DIN E7l 199 Nb26

I. APPLICATIONS:

It is used for welding of 18%Cr-8%Ni-Ti (AISI 321) and 18%Cr-8%Ni-Cb (AISI 347) because of its excellent creep-rupture property at high temperature.

II. DESCRIPTION:

NSS-347 is composed with 19%C4-9%Ni-Cb and is more stable resistance to intergranular corrosion than NSS-308L with the addition of columbium as carbon stabilizer.

III. INSTRUCTION FOR WELDING:

  • Remove dirts such as oil and dust from the groove.

  • Normally, preheat is not necessary.

  • Keep the arc length as short as possible.

  • Rebake the electrode at 200-250ºC for about one hour before use.

     IV. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):

 

C

Si

Mn

Ni

Cr

Cu

Nb+Ta

0.05

0.44

1.73

10.06

19.93

-

0.68

V. TYPICAL MECAHNICAL PROPERTIES OF WELD METAL:

 

Tensile Strength

N/mm2 (Ksi)

Elongation

%

638 (93)

39

VI. WELDING POSITIONS: ALL POSITIONS

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS (AC or DC + ):

 

Size

Diameter (mm)

1.6

2.0

2.5

3.2

4.0

5.0

(mm)

Length (mm)

250

250

300

350

350

350

Amperes

 

Flat

30-45

35-60

55-80

70-120

100-150

150-220

V-up, OH

25-40

30-50

50-70

65-105

85-135

-

 

 TEST RESULT

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.