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Pipeliner
www.lincolnelectric.com
PIPELINER NR-207XP AWS: E71T8-K6 Self-Shielded Flux-Cored (FCAW-S) Wire Electrode
For consistently high impact values,
choose 207XP. Optimum perfor-
mance on vertical down, hot, fill and
cap passes on standard cross-country
p
ipelines and arctic grade pipe.
Recommended for API Pipe Grades
X42 through X70.
WELDING POSITIONS
ADVANTAGE LINCOLN
• Consistently high CVN properties,
even down to -40˚F (-40˚C).
• Virtually eliminates CVN values
below 42 ft•lbf (56 joules).
• Self-shielded, flux-cored. No need
for external gas or flux.
• Produces quality welds in moderate
wind conditions with no tenting.
CONFORMANCE
AWS A5.29-98: E71T8-K6
ASME SFA-5.29: E71T8-K6
• Our quality driven manufacturing
system – certified to ISO 9001 –
and our exceptionally high grade
raw materials mean every coil of
I
nnershield delivers great arc
characteristics and superior
feedability.
• Manufactured to actual lot control.
Actual certificates of conformance
are available upon request.
TYPICAL APPLICATIONS
• Suggested for use on applications
demanding consistently high tough-
ness.
• Standard cross country pipelines.
• Arctic grade pipe.
1
G
2F
4G
2G
5G
➔
3G
➔
%C %Mn %P %S %Si %Al %Ni %Cr %Mo %V
Requirements
AWS E71T8-K6
.15 .50- .03 .03 .80 1.80 .40- .20 .15 .05
max. 1.50 max. max. max. max. 1.00 max. max. max.
Typical Results .055 .98 .009 <.003 .07 .80 .61 .04 .03 <.003
DEPOSIT COMPOSITION
- As Required per AWS A5.29
DIAMETERS / PACKAGING
Diameter 14 Lb. (6.3 kg) Coil
in. (mm) [ 56 Lb. (25.4 kg)
Master Sealed Pail ]
5/64 (2.0) ED030925
MECHANICAL PROPERTIES
- As Required per AWS A5.29-98 (Standard AWS Test Plate)
NOTE: Pipeliner elec-
trodes are manufactured
under lot control. A
Certificate of Test showing
actual deposit chemistry
and mechanical properties
per AWS A5.29 is avail-
able on request from the
factory for every lot of
electrode.
(Fax 216-383-8386).
(1)
The strength and elongation properties reported were obtained from a .505" tensile specimen artificially aged at 220°F
(104°C) for 48 hours, as permitted by AWS A5.29-98. A naturally aged tensile specimen may take months to achieve the
specified properties. The time required for the natural aging of weld deposits is dependent upon ambient conditions, weld-
ment geometry, the metallurgical structure of the weld deposit and other factors.
(2)
Standard testing completed to AWS test plate specifications.
Figure 1 below shows results on a simulated pipe joint.
Charpy V-Notch
Yield Strength Tensile Strength
(1)
Elongation
(1)
ft•lbf (Joules)
(2)
Hardness
psi (MPa) psi (MPa) (%) @ -20°F (-29°C) @-40°F (-40°C) Rockwell B
Requirements 58,000 (400) 70,000 - 90,000 20 20 (27) Not . Not
AWS E71T8-K6 min. (483 - 620) min. min. Required . Required
Typical Results 63,000 79,000 30 173 - 251 147 . NA
(434) (545) (234 - 340) (199) ..
04020 60 80 100 120 140 160 180 200 220 240
0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
CVN (ft-lbs)
% of Total Samples
Figure 1 – CVN Distribution
E6010 Root Pass on Simulated Pipe Joint
@ -4˚F (-20˚C)
NR-207XP virtually eliminates CVN values below 42 ft•lbf (56 joules).
42ft•lbf (56joules)
Typical Operating Procedures – See page 15.