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NIHONWELD NSS-502
AWS Specification: E502-16
JIS Specification:

DT2516

Other Specification:

DIN ECrMo5B26

I. APPLICATIONS:

Welding of 5% Mo steels such as ASTM 387 Gr. 5 used in oil refining chemical industries and electric power plant. Welding of quenched and tempered high tensile strength steel for air craft parts.

II. DESCRIPTION:

Welding of 5% Mo steels such as ASTM 387 Gr. 5 used in oil refining chemical industries and electric power plant. Welding of quenched and tempered high tensile strength steel for air craft parts.

III. NOTES ON USAGE:

  • Dry the electrodes at 325-375°C for about one hour before use.

  • Preheat at 250-350°C and post heat at 730-760°C. 

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

 

C

Si

Mn

Cr

Mo

0.06

0.62

0.43

4.95

0.51

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Tensile Strength N/mm2 (Ksi)

Yield Point N/mm2

(Ksi)

Elongation

%

PWHT

420 (61)

540 (55)

32

750°C x 8 hrs

 VI. WELDING POSITIONS: ALL POSITIONS

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

 

Diameter (mm)

 

2.5

3.2

4.0

5.0

Length (mm)

 

300

350

400

400

Ampere

Flat

50 - 75

70 - 110

100 - 155

155 - 200

V & OH

30 -70

55 - 105

90 - 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.

 

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