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Ultracore stainless, flux-cored wire, plastic spool

Diameters / Packaging

Diameters

UltraCore® 81K2A75-H

Flux-Cored Gas-Shielded (FCAW-G)

CLASSIFICATIONS:
E81T1-K2M-JH4
E81T1-M21A4-K2-H4

UltraCore® 81K2A75-H from Lincoln Electric is a low alloy, gas-shielded flux-cored wire designed to provide low temperature impact properties required in many offshore welding applications.

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DETAILS

A low alloy, gas-shielded flux-cored wire designed to provide low temperature impact properties required in many offshore welding applications.

Features

  • Capable of producing weld deposits with impact toughness exceeding 89 - 127 J (66 - 94 ft·lbf) at -40°C (-40°F)
  • Designed for welding with 75-85% Argon/Balance CO2 shielding gas
  • Premium arc performance and bead appearance
  • H4 diffusible hydrogen levels
  • ProTech® foil bag packaging

Typical Applications

  • High strength steels with 550 MPa (80 ksi) tensile strength
  • Offshore
  • Shipbuilding

Welding Positions

  • All except vertical down

Shielding Gas

  • Mixed Shielding Gas

Disclaimers

Warning -

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

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 E81T1-K2M-JH4
AWS AWS A5.36 E81T1-M21A4-K2-H4
ABS ABS - Part 2 4YQ460SA H5
CWB CSA W48 E551T1-M21A4-K2-H4 (E551T1-K2M-JH4)
DNV-GL DNV - 2.9 IV Y46MS H5
LR LR - Chapter 11 4Y46S H5

MECHANICAL PROPERTIES

Classification Shielding Gas Polarity Yield Strength @ 0.2% Offset
MPa (ksi) 		Tensile Strength
MPa (ksi) 		Elongation
% 		Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) 		Charpy V-Notch
J (ft-lbs) @ -40°C (-40°F)
E81T1-K2M-JH4 Requirement 75-80% Ar, balance CO2 DC+ 470 (68) min. 550-690 (80-100) 19 min. 27 (20) min.
E81T1-M21A4-K2-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+ 540 (78) 590-640 (86-93) 22 106-136 (78-100) 83-151 (61-111)

DEPOSIT COMPOSITION

Classification Shielding Gas Polarity %B %C %Cr %Mn %Mo %Ni %P %S %Si %V Diffusible Hydrogen
mL/100g Weld Metal
E81T1-K2M-JH4 Requirement 75-80% Ar, balance CO2 DC+ 0.15 max. 0.15 max. 0.50 - 1.75 0.35 max. 1.00 - 2.00 0.030 max. 0.030 max. 0.80 max. 0.05 max. 4.0 max.
E81T1-M21A4-K2-H4 Requirement M21-ArC DC+ 0.15 max. 0.15 max. 0.50 - 1.75 0.35 max. 1.00 - 2.00 0.030 max. 0.030 max. 0.80 max. 0.05 max. 4 max.
Typical Result 75% Ar, 25% CO2 DC+ 0.0048-0.0066 0.04-0.07 0.03-0.06 0.99-1.09 0.01 max. 1.44-1.62 0.013 max. 0.012 max. 0.25-0.30 0.03 max. 3.4

TYPICAL OPERATING PROCEDURES

Diameter Shielding Gas Polarity CTWD
mm (in.)⁽¹⁾ 		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
%
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 4.4 (175) 22-27 140 1.8 (4.0) 1.6 (3.5) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 5.1 (200) 23-28 150 2.1 (4.6) 1.8 (4.0) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 6.4 (250) 24-29 165 2.6 (5.7) 2.3 (5.0) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 7.6 (300) 24-29 190 3.1 (6.8) 2.7 (6.0) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 8.9 (350) 25-30 205 3.6 (8.0) 3.2 (7.0) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 9.5 (375) 25-30 225 3.9 (8.6) 3.4 (7.5) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 10.8 (425) 26-31 245 4.4 (9.7) 3.8 (8.5) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 12.1 (475) 27-32 265 4.9 (10.8) 4.3 (9.5) 86-88
0.045 in (1.1 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 12.7 (500) 28-33 275 5.2 (11.4) 4.5 (10.0) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 3.8 (150) 22-27 150 2.0 (4.5) 1.8 (3.9) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 4.7 (185) 23-28 165 2.5 (5.5) 2.2 (4.8) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 5.7 (225) 23-28 190 3.1 (6.7) 2.7 (5.9) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 6.4 (250) 24-29 215 3.4 (7.5) 2.9 (6.5) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 6.9 (275) 24-29 235 3.7 (8.2) 3.2 (7.2) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 7.6 (300) 25-30 255 4.1 (9.0) 3.5 (7.8) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 8.5 (335) 25-31 275 4.5 (10.0) 4.0 (8.7) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 9.5 (375) 26-32 295 5.1 (11.2) 4.4 (9.8) 86-88
0.052 in (1.3 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 10.2 (400) 26-33 310 5.4 (12.0) 4.7 (10.4) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 3.8 (150) 22-27 200 2.9 (6.3) 2.5 (5.5) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 4.4 (175) 23-28 210 3.3 (7.4) 2.9 (6.4) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 5.1 (200) 24-29 235 3.8 (8.4) 3.3 (7.3) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 5.7 (225) 24-29 265 4.3 (9.5) 3.7 (8.2) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 6.4 (250) 25-30 285 4.8 (10.5) 4.2 (9.2) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 6.9 (275) 25-31 315 5.3 (11.6) 4.6 (10.1) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 8.3 (325) 26-32 335 6.2 (13.7) 5.4 (11.9) 86-88
1/16 in (1.6 mm) 75-85% Ar / balance CO2 DC+ 25 (1) 8.9 (350) 27-33 365 6.7 (14.7) 5.8 (12.8) 86-88

NOTES

Note
⁽¹⁾ To estimate ESO, subtract 1/4 in. (6.0 mm) from CTWD.