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NIHONWELD NSS-312
NIHONWELD NSS-312
AWS Specification: E312-16
JIS Specification:

NONE

Other Specification:

 

 

 

 

I. APPLICATIONS:

Welding of dissimilar metals such as stainless steel to mild steel and low alloy steel.

Welding of stainless clad steel.Under - laying of hard surfacing

 

II. DESCRIPTION:

NSS-312 is a lime-titania type electrode which gives 29%Cr-9%Ni. As the weld metal has high ferrite structure, its crack resistibility is excellent. It is used for welding of dissimilar metals and underlaying welding of hard surfacing.

 

III. NOTES ON WELDING:

  • Choose the welding current as low as possible to prevent cracking of plate.

  • It is necessary to preheat the plate at 200ºC and over in the case of welding of special steel such as high alloy tool steels.

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

 

C

Mn

Si

Ni

Cr

P

S

0.09

1.62

0.67

9.39

28.75

0.025

0.007

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Tensile Strength

N/mm2 (Ksi)

Elongation

%

761 (110)

24

VI. WELDING POSITIONS: ALL POSITIONS

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

 

Diameter (mm

1.6

2.0

2.5

3.2

4.0

5.0

Length (mm)

255

255

300

350

350

350

Current

Range

F

20-50

20-50

50-80

70-110

100-150

130-180

V, OH

15-45

15-45

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.