ESAB 74464040G0 OK 74.46 1/2Mo 4.0mm x 450mm (13.8kg)

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ESABOur Code: 9002 ESAB's Code: 74464040G0 Group: 004

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Features

  • Low-alloyed (0.5% Mo) basic covered electrode for welding pressure vessel steels
  • Suitable for DC+ and AC currents with excellent arc stability and runnability, even in inclined positions
  • Hermetically sealed ESAB VacPac™ packaging protects electrodes from moisture; ready to use without re-baking
  • Certified to AWS A5.5: E7018-A1 and EN ISO 3580-A: E Mo B 3 2 H5 classifications
  • Diffusible hydrogen ≤5 ml/100 g ensures low-hydrogen welds
  • Typical yield strength 460 MPa, tensile strength 560 MPa, and elongation 27% after PWHT
  • Charpy V-notch impact value of 175 J at +20 °C following PWHT
  • Deposition rate up to 1.8 kg/h at 140–200 A and 26 V on 4.0 × 450 mm electrodes
  • Recommended preheat 125–200 °C for thicknesses over 12 mm and post-weld heat treatment at 580–630 °C for 30 min
  • Optimized coating composition for low-current pipe welding applications

Specifications

Last Modified 28/06/2025, 08:24:59
EAN Code 7330129123742
Weight 2.3 kg
Length 45 cm
Width 0.4 cm
Classification SFA/AWS A5.5: E7018-A1; EN ISO 3580-A: E Mo B 3 2 H5
Approvals CE: EN 13479; DB: 10.039.45; VdTÜV: 01043
Alloy Type Low-alloyed steel electrode with 0.5% Mo
Coating Type Basic covering
Welding Current DC+, AC
Min AC Open-Circuit Voltage 65 V
Diffusible Hydrogen < 5 ml/100 g
Typical Yield Strength 460 MPa (PWHT 580–630 °C/30 min)
Typical Tensile Strength 560 MPa (PWHT 580–630 °C/30 min)
Elongation (A5) 27% (PWHT 580–630 °C/30 min)
Charpy V-Notch Impact Value 175 J at +20 °C (PWHT 580–630 °C/30 min)
Chemical Composition (typical) C 0.06; Si 0.50; Mn 0.70; Mo 0.50; P ≤0.02; S ≤0.02
Diameter 4.0 mm
Electrode Length 450 mm
Recommended Current Range 140–200 A
Arc Voltage 26 V
Efficiency 65%
Deposition Rate 1.8 kg/h
Fusion Time per Electrode 90 s at 90% Iₘₐₓ
Preheat for >12 mm Sections 125–200 °C
Post-Weld Heat Treatment 580–630 °C for 30 min

Documentation

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