Innershield Family

Innershield® NR®-305

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

AWS: E70T-6-H16, E70T6-A2-CS3-H16

Innershield® NR®-305 from Lincoln Electric is designed for in-position, high deposition welding on carbon steel.

DETAILS

Designed for in-position, high deposition welding on carbon steel. Recommended in single or multiple pass, automatic and semiautomatic welding.

Features

  • High deposition rates in the flat and horizontal positions
  • Smooth arc and low spatter levels
  • Capable of producing weld deposits with impact properties exceeding 27 J (20 ft·lbf) at -29°C (-20°F)
  • Welds on lightly rusted or primed plate
  • Notes: AWS D1.8 structural steel seismic supplement test data can be found in the Lincoln Electric Certificate Center

Typical Applications

  • General plate fabrication
  • Structural fabrication, including those subject to seismic requirements
  • Shipyards, stiffener welding on barges
  • Bridges and offshore rigs
  • Welding over tack welds made with stick electrode

Welding Positions

  • Flat/Horizontal

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 A5.20 E70T-6-H8
AWS AWS A5.36 E70T6-A2-CS3-H8
ABS ABS - Part 2 2YSA
ABS AWS A5.20 E70T-6-H16
DNV-GL DNV - 2.9 II YMS
DB ISO 17632-A T 42 0 W N 3 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)
E70T-6-H8 Requirement DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E70T6-A2-CS3-H8 Requirement DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
Typical Result, As-welded DC+ 410 (60) 530-590 (76-86) 23 35-64 (26-47)

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 %B %C %Mn %P %S %Si Diffusible Hydrogen
mL/100g Weld Metal
E70T-6-H8 Requirement DC+ 0.30 max. 1.75 max. 0.03 max. 0.03 max. 0.60 max. 8.0 max.
E70T6-A2-CS3-H8 Requirement DC+ 0.30 max. 1.75 max. 0.030 max. 0.030 max. 0.60 max. 8 max.
Typical Result DC+ 0.7-1.0 0.0019 0.05-0.08 1.19-1.61 0.020 0.010 0.17-0.28 5.1

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
%
5/64 in (2.0 mm) DC+ 35-51 (1 3/8-2) 4.4 (175) 20-22 300 8.5 (10.5) 4.0 (8.8) 84
5/64 in (2.0 mm) DC+ 35-51 (1 3/8-2) 5.6 (220) 21-23 330 6 .0 (13.3) 5.0 (11.1) 83
5/64 in (2.0 mm) DC+ 35-51 (1 3/8-2) 6.6 (260) 22-24 360 7.1 (15.7) 5.9 (13.1) 83
5/64 in (2.0 mm) DC+ 35-51 (1 3/8-2) 7.6 (300) 24-26 375 8.2 (18.1) 6.9 (15.2) 84
5/64 in (2.0 mm) DC+ 35-51 (1 3/8-2) 8.3 (325) 25-27 400 8.9 (19.7) 7.4 (16.4) 83
3/32 in (2.4 mm) DC+ 41-54 (1 5/8-2 1/4)⁽⁴⁾ 4.1 (160) 21-23 330 6.0 (13.3) 5.0 (11.0) 82
3/32 in (2.4 mm) DC+ 41-54 (1 5/8-2 1/4)⁽⁴⁾ 6.1 (240) 24-26 425 9.1 (20.0) 7.6 (16.7) 83
3/32 in (2.4 mm) DC+ 41-54 (1 5/8-2 1/4)⁽⁴⁾ 7.6 (300) 27-29 475 11.3 (25.0) 9.5 (21.0) 84
3/32 in (2.4 mm) DC+ 41-54 (1 5/8-2 1/4)⁽⁴⁾ 10.2 (400) 33-35 525 15.2 (33.4) 12.7 (28.0) 83