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NIHONWELD NSS-318
AWS Specification: E318-16
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

 

Welding of chemical plant which is exposed to non-oxidizing acid such as sulfuric acid, sulfurous acid, phosphoric acid, etc. Welding of AlSl316 which required to prevent precipitation of chromium carbide in the welding.

II. DESCRIPTION:

NSS-318 is a lime-titania type stainless steel electrode which produces perfect austenitic structures. It has excellent usability and weldability. As the weld metal contains Mo, the deposited metal has excellent corrosion resistibility oxidizing acid and non-oxidizing acid such as sulfuric acid, etc. As the deposited metal also contains Nb, it is excellent resistance to intergranular corrosion and has no precipitation of chromium carbide in the weld metal.

III. NOTES ON WELDING

  • Keep the arc length as short as possible.

  • Choose the welding current within the range stated in the table below.

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

 

C

Mn

Si

Ni

Cr

Mo

Nb & Ta

0.06

1.76

0.67

12.66

19.07

2.24

0.65

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Tensile Strength

N/mm2 (Ksi)

Elongation

%

612 (89)

35

VI. WELDING POSITIONS:FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD

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

 

Diameter (mm

2.5

3.2

4.0

5.0

Length (mm)

300

350

350

350

Current

Range

F

50-80

70-110

100-150

130-180

V, OH

45-75

65-105

95-140

-

 

 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.