Innershield Family

Innershield® NR®-207

Flux-cored self-shielded (FCAW-S) Wire

AWS: E71T8-K6-H16, E71T8-A2-K6-H16

Innershield® NR®-207 from Lincoln Electric is designed for vertical down, hot, fill and cap passes on standard cross-country pipelines and arctic grade pipe.

DETAILS

Designed for vertical down, hot, fill and cap passes on standard cross-country pipelines and arctic grade pipe. Recommended for API Pipe Grades X42 up to undermatching X70.

Features

  • Vertical down hot, fill and cap passes on standard cross-country pipelines and arctic grade pipe
  • Recommended for API grades X42 up to undermatching X70
  • High deposition rates

Typical Applications

  • Standard cross-country pipelines
  • Arctic grade pipe up to undermatched X70

Welding Positions

  • All

Shielding Gas

  • N/A

Special Features

Service Information

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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 A5.29 E71T8-K6-H16
AWS AWS A5.36 E71T8-A2-K6-H16
ABS AWS A5.29 E71T8-K6
BV BV - Chapter 5 SA3YMH
CWB CSA W48 E491T8-A3-K6-H16 (E491T8-K6-H16)
DNV-GL DNV - 2.9 III YMS H15

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

MECHANICAL PROPERTIES

Classification Polarity Yield Strength @ 0.2% Offset
MPa (ksi)
Tensile Strength
MPa (ksi)
Elongation
%
Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F)
E71T8-K6-H16 Requirement DC- 400 (58) min. 480-620 (70-90) 20 min. 27 (20) min.
E71T8-A2-K6-H16 Requirement DC- 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
Typical Result, As-welded DC- 410 (59) 520-570 (75-82) 26 31-197 (23-145)

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

DEPOSIT COMPOSITION

Classification Polarity %Al %C %Cr %Mn %Mo %Ni %P %S %Si %V Diffusible Hydrogen
mL/100g Weld Metal
E71T8-K6-H16 Requirement DC- 1.8 max. 0.15 max. 0.20 max. 0.50 - 1.50 0.15 max. 0.40 - 1.00 0.030 max. 0.030 max. 0.80 max. 0.05 max. 16.0 max.
E71T8-A2-K6-H16 Requirement DC- 1.8 max. 0.15 max. 0.20 max. 0.50 - 1.50 0.15 max. 0.40 - 1.00 0.030 max. 0.030 max. 0.80 max. 0.05 max. 16 max.
Typical Result DC- 0.8-1.1 0.05-0.07 0.02-0.05 0.86-1.03 0.03 0.72-0.90 0.009 0.004 0.24-0.30 0.005 6.0

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

TYPICAL OPERATING PROCEDURES

Diameter Polarity CTWD
mm (in.)
Wire Feed Speed
m/min (in/min)
Voltage
volts
Approx. Current
amps
Melt-off Rate
kg/hr (lb/hr)
Deposition Rate
kg/hr (lb/hr)
Efficiency
%
0.068 in (1.7 mm) DC- 25 (1) 2.0 (80) 17-18 190 1.7 (3.8) 1.3 (3.0) 79
0.068 in (1.7 mm) DC- 25 (1) 2.6 (105) 18-19 230 2.2 (5.3) 1.8 (4.0) 80
0.068 in (1.7 mm) DC- 25 (1) 3.0 (120) 19-20 245 2.5 (5.7) 2.0 (4.5) 79
0.068 in (1.7 mm) DC- 25 (1) 3.5 (140) 21-22 275 3.0 (6.8) 2.4 (5.5) 81
0.068 in (1.7 mm) DC- 25 (1) 4.4 (175) 21-22 295 3.6 (8.0) 2.9 (6.4) 80
5/64 in (2.0 mm) DC- 25 (1) 1.7 (70) 17-18 205 2.0 (4.5) 1.5 (3.4) 76
5/64 in (2.0 mm) DC- 25 (1) 2.0 (80) 18-19 225 2.3 (5.1) 1.7 (3.9) 76
5/64 in (2.0 mm) DC- 25 (1) 2.2 (90) 18-19 240 2.6 (5.8) 2.0 (4.5) 78
5/64 in (2.0 mm) DC- 25 (1) 2.7 (110) 20-21 275 3.1 (7.0) 2.4 (5.5) 79
5/64 in (2.0 mm) DC- 25 (1) 3.3 (130) 20-21 300 3.7 (8.3) 2.9 (6.5) 78