Pipeliner Family

Diameters / Packaging

Diameters
10 LB SPOOL
25 LB SPOOL
1.2 MM ED033320 ED033321

Pipeliner® 81M

Flux-Cored Gas-Shielded (FCAW-G)

AWS: E81T1-GM, E81T1-M21A4-K11

Pipeliner® 81M from Lincoln Electric is designed for hot, fill and cap pass welding on up to X70 grade pipe.

DETAILS

A gas-shielded, flux-cored wire designed for hot, fill and cap pass welding on up to X70 grade pipe.

Features

  • Designed for optimal performance in automated pipe welding applications where a consistent arc length is critical
  • Fast freezing slag provides consistent puddle support all the way around the pipe
  • Capable of producing weld deposits with impact toughness exceeding 27J (20ftlbf) at -40C (-40F)
  • Q2 Lot® - Certificate showing actual deposit chemistry and mechanical properties per lot available online
  • ProTech® foil bag packaging

Typical Applications

  • Hot, fill and cap pass welding on up to X70 grade pipe
  • Fully automated pipe welding
  • Semi-automatic pipe welding
  • Meets requirements for NACE applications

Welding Positions

  • All

Shielding Gas

  • Mixed Shielding Gas

Disclaimers

Warning -

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

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 E81T1-GM-H4
AWS AWS A5.36 E81T1-M21A4-K11-H4
CWB CSA W48 E551T1-M21A4-K11-H4, E81T1-GM-H4

MECHANICAL PROPERTIES

Classification Shielding Gas Polarity Yield Strength @ 0.2% Offset
MPa (ksi)
Tensile Strength
MPa (ksi)
Elongation
%
Charpy V-Notch
J (ft-lbs) @ -40°C (-40°F)
E81T1-GM-H4 Requirement 75-80% Ar, balance CO2 DC+ 470 (68) min. 550-690 (80-100) 19 min.
E81T1-M21A4-K11-H4 Requirement M21-ArC DC+ 470 (68) min. 550-690 (80-100) 19 min. 27 (20) min.
Typical Result, As-welded 75% Ar, 25% CO2 DC+ 490 (71) 570-620 (82-90) 25 89-155 (65-114)

DEPOSIT COMPOSITION

Classification Shielding Gas Polarity %B %C %Cr %Mn %Mo %Ni %P %S %Si %V Diffusible Hydrogen
mL/100g Weld Metal
E81T1-GM-H4 Requirement 75-80% Ar, balance CO2 DC+ Info. Only 0.30 min. * 0.50 min. * 0.20 min. * 0.50 min. * 0.030 max. 0.030 max. 1.00 max. 0.10 min. * 4.0 max.
E81T1-M21A4-K11-H4 Requirement M21-ArC DC+ 0.15 max. 0.20 max. 1.00 - 2.50 0.50 max. 0.40 - 1.00 0.030 max. 0.030 max. 0.80 max. 0.05 max. 4 max.
Typical Result 75% Ar, 25% CO2 DC+ 0.0064-0.007 0.06-0.07 0.05 max. 1.51-1.72 0.02 0.77-0.87 0.015 max. 0.014 max. 0.32-0.39 0.01 2.1-3

TYPICAL OPERATING PROCEDURES

Diameter Shielding Gas Polarity CTWD
mm (in.)
Wire Feed Speed
m/min (in/min)
Voltage
volts
Approx. Current
amps
Melt-off Rate
kg/hr (lb/hr)
1.2 mm (0.047 in) 75-85% Ar / balance CO2 DC+ 19 (3/4) 4.4-10.2 (175 - 400) 23-30 130 - 275 1.8-4.1 (3.9-9.0)

NOTES

Note
* To meet the requirements of a "G" classification, the chemical composition of the weld deposit must meet the minimum requirement for one or more of these elements.