LINCOLN EXCALIBUR AWS E7018 LOW HYDROGEN ELECTRODE

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Stick (SMAW)

CLASSIFICATIONS:
AWS A5.1 : E7018 H4R

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

DETAILS

Low hydrogen (or basic) electrodes are designed for applications susceptible to hydrogen cracking.

Features

  • Premium arc performance
  • Extreme bend ability
  • Excellent moisture resistance
  • Clean arc start
  • Clear puddle
  • Smooth arc

 

Typical Applications

  • Structural
  • Chemical processing structures
  • Pressure pipping
  • Ship building
  • Mild steel

Welding Positions

  • All, except vertical down

Shielding Gas

  • Not Applicable

Special Features

  • Excalibur® 7018 XMR™ offers superior moisture resistance even after 24 hours – remaining below the moisture content limit for 15 hours more than required under AWS A5.

Disclaimers

 Warning –

Cancer and Reproductive Harm –

www.P65Warnings.ca.gov

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
AWS
ISO
ABS
BV
CWB
DNV-GL
LR
SPECIFICATION CLASSIFICATION
AWS A5.1 E7018 H4R
ISO 2560-B E4918 A H5
ABS – Part 2 3YH5
BV – Chapter 5 3YHHH
CSA W48 E4918
DNV – 2.9 3YH5
LR – Chapter 11 3YM H5

MECHANICAL PROPERTIES

Classification
E7018 H4R Requirement
Typical Result, As-welded
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
400 (58) min. 480 (70) min. 22 min. 27 (20) min.
420-470 (62-68) 520-570 (75-83) 27-32 96-416 (71-307) 82-89

DEPOSIT COMPOSITION

Classification
E7018 H4R Requirement
Typical Result
%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
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.
0.05-0.06 0.03 1.16-1.35 0.01 max. 0.02-0.03 0.010-0.014 0.005-0.009 0.43-0.54 0.01 max. 1.25-1.42 2 0.1 0.2

TYPICAL OPERATING PROCEDURES

Diameter
3/32″ (2.4 mm)
3/32″ (2.4 mm)
1/8″ (3.2 mm)
1/8″ (3.2 mm)
5/32″ (4.0 mm)
5/32″ (4.0 mm)
Polarity Current
Amps
DC+ 70-110
AC 80-120
DC+ 90-160
AC 100-160
DC+ 130-210
AC 140-210

 

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LINCOLN EXCALIBUR AWS E7018 LOW HYDROGEN ELECTRODE
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