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ESAB

OK FLUX 281

OK FLUX 281

OK Flux 281 is an active flux intended for welding gauge thickness and thin steel plate(up to 3/8 in. thick) for butt, lap and fillet welds. Due to the excellent operating characteristics, quality welds with self-peeling slag and free from undercut may be achieved with welding speeds ranging from 50 to 100 inches per minute. *Single pass application only. Any mechanical property and undiluted weld chemistry listed are for information only.

Where To Buy


Industries

  • Metal Beam Fabrication
  • Pipe Construction
  • Railcars
  • Tank and Vessel Fabrication

Welding Process

  • Welding-SAW - Submerged Arc Welding

Specifications


Classifications

AWS - As Welded AWS/EN Wire
F7A0-EM13K AWS A5.17: EM13K Spoolarc 29S
F7A0-EM12K AWS A5.17: EM12K Spoolarc 81

Typical Mechanical Properties

Charpy V-Notch Condition Elongation Tensile Strength Wire Yield Strength
23 ft-lb As Welded 22 % 99 ksi Spoolarc 29S 89 ksi
28 ft-lb As Welded 25 % 92 ksi Spoolarc 81 78 ksi

Typical Weld Metal Analysis %

PMnCSSi
0.03 %1.80 %0.07 %0.01 %0.90 %

Classifications: ASME SFA 5.17; AWS A5.17; F7AO-EM12K; AWS A5.17; F7AO-EM13K

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