NSS-318

Specification
AWS Specification: AWS A5.4 E318-16
JIS Specification: N/A
Other Specification: N/A
Description
  • NSS-318 is a lime-titania type stainless steel electrode that produces perfect austenitic structures
  • As the weld metal contains Mo, the deposited metal has excellent corrosion resistibility oxidizing acid and non-oxidizing acid ,such as sulfuric acid, etc.
  • The Nb content results in excellent resistance to intergranular corrosion and has no precipitation of chromium carbide in the weld metal
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Cr

Ni

Mo Nb & Ta

0.06

0.67

1.76

19.07

12.66

2.24 0.65

 

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

612 (89)

35

 

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

DIAMETER (mm)

2.5

3.2

4.0 5.0

LENGTH (mm)

300

350

350 350

Current Amp

Flat

50 - 80

70 - 110

100 - 150 130 - 180

Vertical & Overhead

45 - 75

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 chemical plant which is exposed to non-oxidizing acid such as sulfuric acid, sulfurous acid, phosphoric acid, etc.
  • Welding of AlSl type 316 with the requirment to prevent precipitation of chromium carbide in the welding
     
  • Keep the arc length as short as possible
  • Choose the appropriate recommended welding current

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