SME 7018

Low Hydrogen Electrodes (MMAW)

 

CLASSIFICATION:

AWS A/SFA 5.1       : E 7018

EN ISO 2560-A       : E42 4 B 42

IS 814                    : EB 5626

DETAILS

 

Features/Characteristics

SME 7018 is a low hydrogen, iron powder, it can be used in all positions even for pipe welding, Electrodes with other than low-hydrogen coverings may produce “hydrogen-induced cracking” in those steels., along with good Weld ability, machinability, and corrosion resistance. The fillet welds made in the horizontal and flat welding positions have a slightly convex weld face, with a smooth and finely rippled surface. These electrodes are characterized by a smooth, quiet arc, very low spatter, and medium arc penetration. it gives X-ray quality welds.

 

SME 7018 Welding Rod Uses/Applications

SME 7018 Joining steels like ASTM SA 414, ASTM 333, IS 2002, IS 2041, Boiler, Pressure Vessels, Petrochemical Refinery Equipment’s, Storage Tanks and Pipes, SM E7018 electrodes are used for joints involving high-strength, high carbon, or low-alloy steels.

 

Welding Positions

All Position

 

Re-drying Conditions

To obtain best results Re-Dry the Electrodes at 400 °C for 1 hour (Optionally available in vacuum – packed condition, Re-drying not required in this packaging.)

 

Disclaimers

Service Information

Documentation

  • Safety Data Sheet
  • Certificates of Conformance

 

More Mild Steel Electrodes

 

CONFORMANCE/CLASSIFICATION

Conformances Specification Classification
AWS AWS A/SFA 5.1 E 7018

 

SME 7018 WELD COMPOSITION

C

Cr Ni Mo Mn Si V P S
0.15 max 0.2 max 0.30 0.30 max 1.60 max 0.75 max 0.08 max 0.035 max

0.035 max

 

MECHANICAL PROPERTIES

Ultimate Tensile Strength Min: 490 MPa

Yield Strength Min: 400 MPa

Elongation Min: 22 %

Charpy V-Notch Impact Strength at: -30°C , 27 J min

 

TYPICAL OPERATING PROCEDURES (WELDING CURRENT) AC, DCEP

Diameter Current (Amps)
2.5 mm 80 – 120
3.15 mm 100 – 140
4.0 mm 140 – 180
5.0 mm 180 – 220

 

Availability

Standard Size: 5.0, 4.0, 3.2, and 2.5 diameter

 

Note to Usage

Clean welding area by wire brush, To obtain best results Re-back the Electrode at 350 – 400 °C for 1 hour and keep it at 100 – 150 °C Prior to use.

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