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Pipeliner
www.lincolnelectric.com
PIPELINER 18P AWS: E8018-G H4 Low Hydrogen Stick (SMAW) Electrode
A real workhorse for vertical up
welding jobs up to X80 pipe!
Lincoln 18P offers low temperature
impact properties down to -50°F
(
-46°C).
ADVANTAGE LINCOLN
• Low temperature impact properties
down to -50°F (-46˚C).
• Square burnoff makes welding
easier, especially in critical pipe
welding applications.
• Manufactured under a quality
system certified to ISO 9001
requirements.
• Manufactured to actual lot control.
Actual certificates of conformance
are available upon request.
TYPICAL APPLICATIONS
• Primarily designed for vertical up fill
and cap pass welding of high
strength pipe up to and including
API 5L-X80.
CONFORMANCE
AWS A5.5: E8018-G H4
ASME SFA-5.5: E8018-G H4
Charpy V-Notch
Yield Strength Tensile Strength Elongation ft•lbf (Joules)
psi (MPa) psi (MPa) (%) @ -20ºF (-29ºC) @-50°F (-46°C)
Required 67,000 (460) 80,000 (550) 19 Not Not
AWS E8018-G H4R min. min. min. Required Required .
Typical Results
As-welded 88,000 - 94,000 99,000 - 105,000
28
74 - 83 57 - 59 .
(607 - 648) (683 - 724) (100 - 112) (77 - 80) .
MECHANICAL PROPERTIES
- As Required per AWS A5.5-96
DIAMETERS / PACKAGING
%C %Mn
(1)
%Si
(1)
%S %P %Cr
(1)
%Mo
(1)
%Ni
(1)
%V
(1)
%Cu
(1)
Requirements Not 1.00 .80 Not Not .30 .20 .50 .10 .20
AWS E8018-G H4 Specified min. min. Specified Specified min. min. min. min. min.
Typical Results .04-.08 1.30-1.60 .30-.60 .005-.020 .005-.020 .03-.07 .30-.45 .70-.95 .005-.015 .03-.08
DEPOSIT COMPOSITION
- As Required per AWS A5.5-96
WELDING POSITIONS
(1)
Weld deposit must meet the minimum requirement of at least one of the elements listed.
Manufactured in metric diameters,
U.S. Customary sizes are approximate.
5G
➔
1G
2G
3G
➔
4
G
2
F
NOTE: Pipeliner elec-
trodes are manufactured
under lot control. A
Certificate of Test show-
ing actual deposit chem-
istry and mechanical
properties per AWS A5.5
(DC+ only) is available on
request from the factory
for every lot of electrode.
(Fax 216-383-8386).
Diameter 22.7 kg (50 lb.)
mm (in.) Easy Open Cans
3.2 (1/8) ED030919
4.0 (5/32) ED030920
(mL/100g
weld deposit)
Requirements
AWS E7016 H4 4
Test Results 1 - 3
DIFFUSIBLE HYDROGEN
- As Required per AWS A5.5-96
Current (Amps)
Polarity
3.2mm 4.0mm
(1/8”) (5/32”)
DC+ 90 - 140 130 - 170
AC 100 - 140 140 - 180
TYPICAL OPERATING
PROCEDURES
NOTE: Preferred polarity is listed first.