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NIHONWELD N-8016-C2
AWS Specification: AWS A5.5 E8016-C2
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

Welding of 3.5% Ni steel used for LNG tankers, LNG storage tanks and ethylene production equipments to  be used at about -100°C.

II. DESCRIPTIONS:

The N-8016-C2 is an all positions extra low hydrogen type electrode for 3.5% Ni steel to be used at low temperature (lowest -100°C) Good notch toughness of weld metal at low temperature is obtained because the weld metal contains about 3.5% Ni.

III. NOTES ON USAGE:

  • Pay attention not to exceed proper heat-input because excessive heat-input causes deterioration of impact values and yield strength of weld metal.

  • Preheat at  50-100°C at the postheat at 600-620°C. The preheat temperature varies in accordance with the plate thickness and kind of steels.

  • Dry the electrodes at 350-400°C for about one hour before use

  • Adopt back step method or strike the arc on a small steel plate prepared for this particular purpose to prevent blowholes at the arc starting.

  • Keep the arc as short as possible. 

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

 

C

Si

Mn

Ni

0.04

0.45

0.88

3.2

V. TYPICAL CHEMICAL PROPERTIES OF DEPOSITED METAL AT 620° C, 1 HR

 

Tensile Strength N/mm2 (Ksi)

Yield Point N/mm2

(Ksi)

Elongation %

Impact Value

Deg C, J (Deg F, Ft-lbs)

610 (88)

500 (73)

30

-73°, 70 (-99°,52)

VI. WELDING POSITIONS: ALL POSITIONS

VII. SIZES & RECOMMENDED CURRENT RANGE: AC or DC (+) 

 

Diameter (mm)

 

2.5

3.2

4.0

5.0

Length (mm)

 

350

350

400

400

Ampere

Flat

55 - 85

90 - 130

130 - 180

180 - 240

V & OH

50 - 80

90 - 115

110 - 170

150 - 200

 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.