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Ultracore stainless, flux-cored wire, plastic spool

Diameters / Packaging

Diameters

UltraCore® 81K2C-H

Flux-Cored Gas-Shielded (FCAW-G)

CLASSIFICATIONS:
E81T1-K2C-JH4
E81T1-C1A5-K2-H4

UltraCore® 81K2C-H from Lincoln Electric is capable of producing weld deposits with impact toughness exceeding 111 - 141 J (82 - 104 ft·lbf) at -40°C (-40°F).

DETAILS

Capable of producing weld deposits with impact toughness exceeding 111 - 141 J (82 - 104 ft·lbf) at -40°C (-40°F).

Features

  • Capable of producing weld deposits with impact toughness exceeding 111 - 141 J (82 - 104 ft·lbf) at -40°C (-40°F)
  • Designed for welding with 100% 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

Shielding Gas

  • 100% CO2

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-K2C-JH4
AWS AWS A5.36 E81T1-C1A5-K2-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) @ -30°C (-20°F) 		Charpy V-Notch
J (ft-lbs) @ -40°C (-40°F) 		Charpy V-Notch
J (ft-lbs) @ -45°C (-50°F)
Typical Result, As-welded 100% CO2 DC+ 530 (77) 590-620 (85-90) 24 94-163 (69-120) 65-152 (48-112) 39-111 (29-82)

DEPOSIT COMPOSITION

Classification Shielding Gas Polarity %B %C %Cr %Mn %Mo %Ni %P %S %Si %V Diffusible Hydrogen
mL/100g Weld Metal
Typical Result 100% CO2 DC+ 0.005-0.006 0.03-0.05 0.04-0.06 1.11-1.23 0.01 max. 1.35-1.73 0.012 max. 0.012 max. 0.26-0.33 0.03 max. 1.5-3.3

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) 100% CO2 DC+ 25 (1) 4.4 (175) 23-28 140 1.8 (4.0) 1.6 (3.5) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 5.1 (200) 24-29 150 2.1 (4.6) 1.8 (4.0) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 6.4 (250) 25-30 165 2.6 (5.7) 2.3 (5.0) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 7.6 (300) 25-30 190 3.1 (6.8) 2.7 (6.0) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 8.9 (350) 26-31 205 3.6 (8.0) 3.2 (7.0) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 9.5 (375) 26-31 225 3.9 (8.6) 3.4 (7.5) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 10.8 (425) 27-32 245 4.4 (9.7) 3.8 (8.5) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 12.1 (475) 28-33 265 4.9 (10.8) 4.3 (9.5) 86-88
0.045 in (1.1 mm) 100% CO2 DC+ 25 (1) 12.7 (500) 29-34 275 5.2 (11.4) 4.5 (10.0) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 3.8 (150) 23-28 150 2.0 (4.5) 1.8 (3.9) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 4.7 (185) 24-29 165 2.5 (5.5) 2.2 (4.8) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 5.7 (225) 24-29 190 3.1 (6.7) 2.7 (5.9) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 6.4 (250) 25-30 215 3.4 (7.5) 2.9 (6.5) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 6.9 (275) 25-30 235 3.7 (8.2) 3.2 (7.2) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 7.6 (300) 26-31 255 4.1 (9.0) 3.5 (7.8) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 8.5 (335) 26-31 275 4.5 (10.0) 4.0 (8.7) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 9.5 (375) 27-32 295 5.1 (11.2) 4.4 (9.8) 86-88
0.052 in (1.3 mm) 100% CO2 DC+ 25 (1) 10.2 (400) 27-34 310 5.4 (12.0) 4.7 (10.4) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 3.8 (150) 24-29 200 2.9 (6.3) 2.5 (5.5) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 4.4 (175) 24-30 210 3.3 (7.4) 2.9 (6.4) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 5.1 (200) 25-30 235 3.8 (8.4) 3.3 (7.3) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 5.7 (225) 25-31 265 4.3 (9.5) 3.7 (8.2) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 6.4 (250) 26-31 285 4.8 (10.5) 4.2 (9.2) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 6.9 (275) 26-32 305 5.3 (11.6) 4.6 (10.1) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 8.3 (325) 27-32 335 6.2 (13.7) 5.4 (11.9) 86-88
1/16 in (1.6 mm) 100% CO2 DC+ 25 (1) 8.9 (350) 28-34 365 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.