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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