OK Flux 10.81LS

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OK FLUX 10.81LS is an agglomerated Si and Mn alloying flux for submerged arc welding. Most suitable for applications where the dilution of base metal is high, e.g. in fillet welding and butt welding of thin and medium thick plates with a limited number of passes. The superior welding properties associated with the acid slag system of OK FLUX 10.81LS permit high travel speeds in butt and fillet welding. It offers superior bead shape, slag removal and surface finish. It can be easily used over rust and primer without running into the risk of porosity.

Consumable Characteristics

Alloy Transfer Silicon and Manganese alloying
Basicity Index nom: 0.7
Grain Size 0.2-1.6 mm
Slag Type Aluminate-rutile


Wire SFA/AWS - EN ISO AWS - As Welded AWS - PWHT
OK Autrod 12.22L A5.17: EM12K / 14171-B: SU21 A5.17: F7AZ-EM12K A5.17: F7PZ-EM12K
OK Autrod 12.08L A5.17: EL8/EL12 / 14171-A: S1 A5.17: F7AZ-EL8/EL12 A5.17: F7PZ-EL8/EL12


Combined with Wire
*Selected production units only. Please contact ESAB for more information. Visit to download specific flux/wire combination fact sheets for more details.

Typical Mechanical Properties

Combined with Wire Condition Yield Strength Tensile Strength Elongation
OK Autrod 12.08L As Welded AWS DC+ 530 MPa 580 MPa 26 %
OK Autrod 12.08L Stress Relieved AWS DC+ 470 MPa 550 MPa 28 %
OK Autrod 12.22L As Welded AWS DC+ 550 MPa 620 MPa 24 %
OK Autrod 12.22L Stress Relieved AWS DC+ 510 MPa 580 MPa 25 %

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Mn Si
OK Autrod 12.08L DC+, 550A, 29V
0.07 % 1.10 % 0.70 %
OK Autrod 12.22L DC+, 550A, 29V
0.09 % 1.45 % 0.85 %

How to purchase OK Flux 10.81LS

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Part Numbers and Accessories

Part Numbers : OK Flux 10.81LS