Menu Close
Innershield Family

Diameters / Packaging

Diameters
 (4) 14 lb Coil
 25 lb Spool
 50 lb Coil
 600 lb Speed Feed® Drum
3/32 in (2.4 mm) ED012629 ED012628
5/64 in (2.0 mm) ED014464 ED030649 ED014459
7/64 in (2.8 mm) ED012632

Innershield® NR®-311

Flux-Cored Self-Shielded (FCAW-S)

AWS:
E70T-7
E70T7-AZ-CS3

Innershield® NR®-311 from Lincoln Electric is designed for high deposition rates and fast travel speeds.

Diameter

Select Diameter

  • 3/32 in (2.4 mm)
  • 5/64 in (2.0 mm)
  • 7/64 in (2.8 mm)

Package

Select Package

  • (4) 14 lb Coil
  • 25 lb Spool
  • 50 lb Coil
  • 600 lb Speed Feed® Drum
Buy Now

DETAILS

Designed for high deposition rates and fast travel speeds. Recommended for fillet, lap and butt welds on 3.2 mm (1/8 in) and thicker steel, including some low alloy steels in applications without impact strength requirements.

Features

  • High deposition rates and fast travel speeds
  • Easy slag removal
  • Optimal toe wash-in
  • Deep penetration
  • High resistance to cracking

Typical Applications

  • Recommended for fillet, lap and butt welds on 3.2 mm (1/8 in) and thicker steel, including some low alloy steels
  • Horizontal butt welds, such as column-to-column structural connections
  • General fabrication
  • Assembly welding

Welding Positions

  • Flat/Horizontal

Shielding Gas

  • N/A

Disclaimers

Warning -

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

Service Information

Documentation

You May Also Need

450A INNERSHIELD SQUIRTGUN-15FT

Magnum® Innershield® 450A FCAW-SS Welding Gun 15 ft 332

K115-4
500 lb Accu-Trak Drum, 600 lb Accu- Trak Drum, 1000 Accu-Pak Drum

Innershield® NR®-5 Flux-Cored (FCAW-S) Wire

ED012699
500 lb Accu-Trak Drum, 600 lb Accu- Trak Drum, 1000 Accu-Pak Drum

Innershield® NS-3M Flux-Cored (FCAW-S) Wire

ED012735
Innershield/Outershield/Submerged Arc Wire

Innershield® NR®-311 Ni Flux-Cored (FCAW-S) Wire

ED017822
View All

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-7
AWS AWS A5.36 E70T7-AZ-CS3
ABS AWS A5.20 E70T-7
CWB CSA W48 E490T7-AZ-CS3 (E492T-7)

MECHANICAL PROPERTIES

Classification Polarity Yield Strength @ 0.2% Offset
MPa (ksi) 		Tensile Strength
MPa (ksi) 		Elongation
%
E70T7-AZ-CS3 Requirement DC- 400 (58) min. 480-660 (70-95) 22 min.
Typical Result, As-welded DC- 410 (59) 570-650 (83-94) 23

DEPOSIT COMPOSITION

Classification Polarity %Al %C %Mn %P %S %Si
E70T7-AZ-CS3 Requirement DC- 0.30 max. 1.75 max. 0.030 max. 0.030 max. 0.60 max.
Typical Result DC- 1.2-1.6 0.21-0.30 0.42-0.49 0.014 0.005 0.08-0.13

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- 38 (1 1/2) 2.5 (100) 20-23 190 2.9 (6.4) 2.3 (5.0) 78
5/64 in (2.0 mm) DC- 38 (1 1/2) 4.1 (160) 24-28 275 4.7 (10.3) 3.6 (8.0) 78
5/64 in (2.0 mm) DC- 38 (1 1/2) 6.1 (240) 25-29 355 7.0 (15.4) 5.6 (12.4) 80
5/64 in (2.0 mm) DC- 38 (1 1/2) 7.6 (300) 27-31 410 8.8 (19.3) 7.2 (15.8) 82
3/32 in (2.4 mm) DC- 45 (1 3/4) 1.9 (75) 20-23 200 3.2 (7.0) 2.5 (5.4) 77
3/32 in (2.4 mm) DC- 45 (1 3/4) 3.4 (135) 23-26 300 5.9 (13.1) 4.6 (10.2) 78
3/32 in (2.4 mm) DC- 45 (1 3/4) 3.8 (150) 24-27 325 6.6 (14.6) 5.2 (11.4) 78
3/32 in (2.4 mm) DC- 45 (1 3/4) 5.3 (210) 26-28 400 9.3 (20.4) 7.5 (16.5) 81
3/32 in (2.4 mm) DC- 45 (1 3/4) 6.9 (270) 28-30 450 11.9 (26.2) 10.0 (22.0) 84
7/64 in (2.8 mm) DC- 45 (1 3/4) 2.5 (100) 23-26 325 5.4 (12.0) 4.5 (10.0) 83
7/64 in (2.8 mm) DC- 45 (1 3/4) 3.7 (145) 25-27 400 8.1 (17.8) 6.6 (14.5) 82
7/64 in (2.8 mm) DC- 45 (1 3/4) 4.4 (175) 26-28 450 9.8 (21.5) 8.2 (18.0) 83
7/64 in (2.8 mm) DC- 45 (1 3/4) 6.1 (240) 30-32 550 13.4 (29.5) 11.6 (25.5) 86
7/64 in (2.8 mm) DC- 45 (1 3/4) 7.6 (300) 32-34 625 16.7 (36.9) 15.0 (33.0) 89