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Lincoln Electric Stick Electrodes

Diameters / Packaging

Diameters
 (3) 10 lb Easy Open Can
 50 lb Easy Open Can
1/8 x 14 in (3.2 x 350 mm) ED040001-1 ED040001
3/16 x 14 in (4.8 x 350 mm) ED040003
3/32 x 14 in (2.4 x 350 mm) ED040000-1 ED040000
5/32 x 14 in (4.0 x 350 mm) ED040002

IronArc™ 7018 MR®

Stick (SMAW) | ED040003

CLASSIFICATIONS:
E7018 H4R

IronArc 7018 MR (3/16x14 in, 50 lb can) is a mild steel, low hydrogen stick electrode ideal for pipeline and pipe repair welding. Meets AWS A5.1 E7018 H4R.

Diameter

Select Diameter

  • 1/8 x 14 in (3.2 x 350 mm)
  • 3/16 x 14 in (4.8 x 350 mm)
  • 3/32 x 14 in (2.4 x 350 mm)
  • 5/32 x 14 in (4.0 x 350 mm)

Package

Select Package

  • (3) 10 lb Easy Open Can
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DETAILS

Lincoln Electric’s IronArc 7018 MR produces a soft, smooth and stable arc that offers an easy to manipulate weld puddle and good operator control, even for beginner welders! Compared to its Excalibur equivalent that is known for its deeper penetration profile, the IronArc 7018 is designed with a flat bead profile that has excellent wetting in the toes ideal for cap passes. By combining a high deposition rate, tested moisture resistance, and low spatter levels, these stick electrodes minimize post-weld clean up and allow for less hold times to optimize productivity.

Features

  • Soft arc for ease of puddle manipulation
  • Smooth arc transfer
  • Excellent wetting in the toes allowing for less hold times
  • Flat bead profile ideal for cap passes on pipe, groove welds, and pipe repair
  • No intentional addition of zinc for moisture resistance

Disclaimers

Warning -

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

Service Information

BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

See test result disclaimer

CONFORMANCE

CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.1 E7018 H4R
CWB CSA W48 E4918-H4R

MECHANICAL PROPERTIES

Classification Yield Strength @ 0.2% Offset
MPa (ksi) 		Tensile Strength
MPa (ksi) 		Elongation
% 		Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) 		Hardness Rockwell B
E7018 H4R Requirement 400 (58) min. 480 (70) min. 22 min. 27 (20) min. Info. Only
Typical Result, As-welded 440-480 (64-69) 540-580 (79-84) 29-32 136-176 (100-130) 86-88

DEPOSIT COMPOSITION

Classification %C %Cr %Mn %Mo %Ni %P %S %Si %V %Mn+Ni+Cr+Mo+V Diffusible Hydrogen
mL/100g Weld Metal 		1800F H2O - As received 1800F H2O - After 9 hrs at 80F/80%RH
E7018 H4R Requirement 0.15 max. 0.20 max. 1.60 max. 0.30 max. 0.30 max. 0.035 max. 0.035 max. 0.75 max. 0.08 max. 1.75 max. 4 max. 0.3 max. 0.4 max.
Typical Result 0.05-0.07 0.02-0.05 1.25-1.37 0.00-0.08 0.00-0.03 0.010-0.013 0.011-0.017 0.41-0.62 0.01 1.30-1.50 1-4 0.1 max. 0.1-0.3

TYPICAL OPERATING PROCEDURES

Diameter Polarity⁽¹⁾ Current
Amps
3/32" (2.4 mm) DC+ 70-110
3/32" (2.4 mm) AC 80-120
1/8" (3.2 mm) DC+ 90-160
1/8" (3.2 mm) AC 100-160
5/32" (4.0 mm) DC+ 120-220
5/32" (4.0 mm) AC 130-220

NOTES

Note
(1) Preferred polarity is listed first.