ESAB 48006040V0 Unitrode OK 48.00 VacPac 7018 6.0mm x 450mm (16.8kg)

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ESABOur Code: 0422 ESAB's Code: 48006040V0 Group: 006

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Features

  • H4 R approved low-hydrogen electrode classification
  • Low diffusible hydrogen (< 4.0 ml/100g) reduces risk of cold cracking
  • Outstanding low moisture absorption to maintain coating integrity
  • High welding speed and efficiency for increased productivity
  • Excellent weldability in vertical-up positions
  • Deposits tough, crack-resistant weld metal
  • Insensitive to variations in base material composition
  • Suitable for welding structures under difficult stress conditions
  • Tested and approved per NACE TM0177 and TM0284
  • Compatible with DC+(-) welding current
  • Carbon Manganese alloy type for robust weld properties
  • Basic covering coating ensures smooth arc performance

Specifications

Last Modified 28/06/2025, 08:25:24
Weight 16.8 kg
Length 45 cm
Classifications SFA/AWS A5.1: E7018 H4 R; EN ISO 2560-A: E 42 4 B 42 H5
Approvals ABS: 3Y H5; BV: 3Y H5; CE: EN 13479; DB: 10.039.12; DNV-GL: 3Y H5; LR: 3Y H5; PRS: 3Y H5; RINA: 3Y H5; UKCA: EN 13479; VdTÜV: 00690
Welding Current DC+(-)
Diffusible Hydrogen < 4.0 ml/100g
Alloy Type Carbon Manganese
Coating Type Basic covering
Yield Strength (as welded) 475 MPa
Tensile Strength (as welded) 565 MPa
Elongation (as welded) 29 %
Charpy V-Notch Impact (AWS -30 °C) 130 J
Charpy V-Notch Impact (ISO -40 °C) 115 J
Chemical Analysis (% C) 0.06
Chemical Analysis (% Mn) 1.1
Chemical Analysis (% Si) 0.5
Deposition Data (6.0 x 450 mm) Current 220–340 A; Voltage 26 V; Efficiency 80 %; Fusion time 97 sec at 90 % I max; Deposition rate 3.88 kg/h

Summary

The ESAB 48006040V0 Unitrode OK 48.00 VacPac 7018 is a versatile electrode for manual metal arc welding of carbon and carbon manganese steels, including those with elevated yield strength. It deposits a tough, crack-resistant weld metal with low moisture absorption, ensuring high welding speed and efficiency, especially in vertical-up positions. It is 4 R approved, offers low diffusible hydrogen to minimize cold cracking, and delivers excellent weldability and appearance, even under challenging stress conditions.

Documentation

A reliable, general purpose electrode for manual metal arc welding of carbon steels, carbon manganese steels and fine-grained carbon manganese steels with elevated yield strength. 

OK 48.00 deposits a tough, crack-resistant weld metal.  

The coating is of the low moisture absorption type. High welding speed in the vertical-up position 

OK 48.00 is insensitive to the composition of the base material within fairly wide limits.  

The electrode can be used for welding structures where difficult stress conditions cannot be avoided 

4 R approved 

Low diffusible hydrogen to reduce the risk for cold cracking 

Outstanding low moisture pick up 

High efficiency bringing productivity 

Extremely good weldability in vertical up position 

Exceptional weld appearance

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