Innershield Family

Diameters / Packaging

Diameters
14 LB COIL
1.6 MM ED034200
5/64 IN ED033827

Innershield® NR®-440Ni2

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

AWS: E71T8-Ni2-JH8, E71T8-A4-Ni2-H8

Innershield® NR®-440Ni2 from Lincoln Electric is designed to provide optimal weldability in narrow TKY joints and poor fit up conditions.

DETAILS

A mild steel self-shielded flux-cored wire designed to provide low temperature impact toughness in a variety of offshore applications.

Features

  • Premium Offshore Weldability – designed to provide optimal weldability in narrow TKY joints and poor fit up conditions
  • Excellent Toe Wash-In – expect fast travel speeds and a flat bead face when using vertical-up or vertical-down welding techniques
  • Low Temperature Impact Toughness – meets ABS 4YSA and AWS J classification
  • Low Diffusible Hydrogen Levels – meets H8 diffusible hydrogen requirements over a range of humidity levels
  • ProTech® Packaging – hermetically sealed packaging for moisture resistance
  • Q2 Lot – certificate showing actual deposit chemistry and mechanical properties per lot available online

Typical Applications

  • Offshore

Welding Positions

  • All

Shielding Gas

  • N/A

Special Features

Service Information

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-Ni2-JH8
AWS AWS A5.36 E71T8-A4-Ni2-H8
ABS ABS - Part 2 4YSA H5
DNV-GL DNV - 2.9 IV YMS H5
LR LR - Chapter 11 4YS H5

MECHANICAL PROPERTIES

Classification Polarity Yield Strength @ 0.2% Offset
MPa (ksi)
Tensile Strength
MPa (ksi)
Elongation
%
Charpy V-Notch
J (ft-lbs) @ -40°C (-40°F)
E71T8-Ni2-JH8 Requirement DC- 400 (58) min. 480-620 (70-90) 20 min. 27 (20) min.
E71T8-A4-Ni2-H8 Requirement DC- 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
Typical Result, As-welded DC- 410 (60) 500-570 (72-83) 23 42-446 (31-329)

DEPOSIT COMPOSITION

Classification Polarity %Al %C %Mn %Ni %P %S %Si Diffusible Hydrogen
mL/100g Weld Metal
E71T8-Ni2-JH8 Requirement DC- 1.8 max. 0.12 max. 1.50 max. 1.75 - 2.75 0.030 max. 0.030 max. 0.80 max. 8.0 max.
E71T8-A4-Ni2-H8 Requirement DC- 1.8 max. 0.12 max. 1.50 max. 1.75 - 2.75 0.030 max. 0.030 max. 0.80 max. 8 max.
Typical Result DC- 0.8-1.1 0.01-0.03 0.70-1.13 1.78-2.11 0.016 0.004 0.13-0.18 1.6-6.9

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
%
1.6 mm (1/16 in) DC- 22 (7/8) 2.3 (90) 17-18 160 1.6 (3.6) 1.1 (2.5) 69
1.6 mm (1/16 in) DC- 22 (7/8) 2.5 (100) 18-19 170 1.6 (3.6) 1.2 (2.8) 72
1.6 mm (1/16 in) DC- 22 (7/8) 2.8 (110) 18-19 180 2.0 (4.4) 1.4 (3.1) 73
1.6 mm (1/16 in) DC- 22 (7/8) 3.0 (120) 19-20 195 2.2 (4.8) 1.6 (3.5) 73
1.6 mm (1/16 in) DC- 22 (7/8) 3.3 (130) 19-20 210 2.3 (5.1) 1.7 (3.7) 73
2.0 mm (5/64 in) DC- 25 (1) 1.8 (70) 16-17 205 1.9 (4.2) 1.5 (3.2) 76
2.0 mm (5/64 in) DC- 25 (1) 2.0 (80) 17-18 225 2.2 (4.7) 1.6 (3.6) 77
2.0 mm (5/64 in) DC- 25 (1) 2.3 (90) 18-19 240 2.4 (5.3) 1.9 (4.2) 78
2.0 mm (5/64 in) DC- 25 (1) 2.5 (100) 19-20 260 2.7 (5.9) 2.1 (4.7) 79
2.0 mm (5/64 in) DC- 25 (1) 2.8 (110) 20-21 260 3.0 (6.5) 2.4 (5.2) 80
2.0 mm (5/64 in) DC- 25 (1) 3.0 (120) 20-21 295 3.2 (7.1) 2.5 (5.6) 79