ESAB

OK Flux 10.72

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Agglomerated aluminate-basic flux for Submerged Arc Welding especially for applications with toughness requirements at low temperature. Excellent slag removal also in narrow V-joints. For wind tower productions, pressure vessels, general constructions etc. Extremely high current carrying capacity. For single or multi wire procedures. Suitable for DC and AC welding. Single layer and multi layer welding of unlimited plate thickness.

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Classifications

Classifications AWS A5.17 : F6P8-EM12K
AWS A5.17 : F7A8-EM12K
AWS A5.23 : F8A4-ENi1K-Ni1
AWS A5.17 : F7P5-EM14K
AWS A5.23 : F9A4-ENi4-Ni4
ASME SFA 5.23 :
ASME SFA 5.17 :

Approvals

Approvals CE EN 13479
CWB CSA W48 F49A6-EM12K-H8
DB 51.039.12
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Transfer No Silicon and moderately Manganese alloying
Basicity Index nom: 1.9
Density nom: 1.2 kg/dm3
Diffusible Hydrogen max 5 ml H/100g weld metal (Redried flux)
Grain Size 0.315-2.0 mm (9x48 mesh)
Slag Type Aluminate-basic

Flux Consumption

Volts kg Flux / kg Wire DC+ kg Flux / kg Wire AC
26 V 0.7 kg 0.6 kg
30 V 1.0 kg 0.9 kg
34 V 1.3 kg 1.2 kg
38 V 1.6 kg 1.4 kg
Amps Dimensions Travel speed
580 A Ø 4.0 mm 55 cm/min

Classifications

Wire AWS/EN AWS - As Welded AWS - PWHT
Spoolarc ENi4 AWS A5.23: ENi4 F9A4-ENi4-ENi4
Spoolarc 81 AWS A5.17: EM12K F7A8-EM12K F6P8-EM12K
Spoolarc 75 AWS A5.23: ENi1K F8A4-ENi1K-ENi1
Spoolarc 71 AWS A5.17: EM14K - F7P5-EM14K

Approvals

Combined with Wire CE CWB DB DNV GL VdTÜV
OK Autrod 12.20 * - * - - *
OK Autrod 12.22 * * * * * *
OK Autrod 12.24 * - * - - *
OK Autrod 13.27 * - - - - -
*Selected production units only. Please contact ESAB for more information. Visit esab.com to download specific flux/wire combination fact sheets for more details.

Typical Mechanical Properties

Combined with Wire Condition Yield Strength Tensile Strength Charpy V-Notch Elongation
Spoolarc 75 As Welded null 550 MPa
(76 ksi)
655 MPa
(89 ksi)
149 J @ -40°C,
(110 ft-lb @ -40 °F)
28 %
Spoolarc 81 As Welded null 425 MPa
(62 ksi)
515 MPa
(75 ksi)
50 J @ -62°C,
(35 ft-lb @ -80 °F)
30 %
Spoolarc 81 Stress Relieved 1 hr @ 621C (1150F) 405 MPa
(59 ksi)
510 MPa
(74 ksi)
50 J @ -62°C,
(35 ft-lb @ -80 °F)
32 %
Spoolarc 81 Stress Relieved 8 hrs @ 621C (1150F) 400 MPa
(58 ksi)
510 MPa
(74 ksi)
163 J @ -46°C,
(120 ft-lb @ -50 °F)
34 %
Spoolarc ENi4 As Welded null 585 MPa
(85 ksi)
680 MPa
(96 ksi)
156 J @ -40°C,
(115 ft-lb @ -40 °F)
26 %

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cu Mn Mo Ni P S Si
Spoolarc 75
0.06 % - 1.80 % - 0.90 % 0.013 % 0.009 % 0.50 %
Spoolarc 81
0.06 % - 1.60 % - - 0.013 % 0.0069 % 0.30 %
Spoolarc ENi4
0.07 % 0.15 % 1.60 % 0.15 % 1.80 % 0.012 % 0.006 % 0.20 %
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Part Numbers and Accessories

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Part Numbers : OK Flux 10.72
1072H00P00 Find a distributor
1072H00U00 Find a distributor
1072000U00 Find a distributor
1072400P0A Find a distributor
1072800P00 Find a distributor

ESAB EQUIPMENT WARRANTIES ARE VALID ONLY WHEN PURCHASED THROUGH AN ESAB AUTHORIZED DEALERSHIP.

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