N-7018-1

Specification

AWS Specification: AWS A5.1 E7018-1
JIS Specification: N/A
Other Specification: N/A

Description

Application

Remarks

  • Welding heat input must be controlled in order to get required impact value since notch toughness tends to decrease by excessive heat input
  • Preheating at 50-100C is needed depending upon the kind of steel and its thickness
  • Dry the electrodes at 350-400C for about one hour before use
  • Take the backstep method or strike the arc previously on a small steel piece to prevent blowholes at the arc striking in a groove
  • Technical Data

    TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

    C

    Si

    Mn

    P

    S

    0.

    0.18

    0.45

    0.014

    0.005

     

    TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
    Yield Point
    N/mm2 (KSI)
     
    Tensile Strength
    N/mm2 (KSI)
     
    Elongation
    %
     
    Impact Value
    °C, J (°F, Ft-Lbs)
     

    540  (78)

    600 (87)

    30

    -46°, 115  (-51°, 85)

     

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

    DIAMETER (mm)

    2.5

    3.2

    4.0

    5.0

    LENGTH (mm)

    350

    350

    400

    450

    Current Amp

    Flat

    55 - 85

    90 - 120

    120 - 170

    170 - 200

    Vertical Overhead

    50 - 80

    80 - 110

    100 - 160

    140 - 190


    Welding Positions: ALL POSITIONS
    Approvals: ABS

    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.