ESAB

OK 68.81

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High alloy stainless electrode of unusual versatility, giving a ferritic-austenitic duplex weld metal with an approximate ferrite content of FN 40. The weld metal is resistant to stress corrosion attack and highly insensitive to dilution by melted parent metal. Applications: joining of HWT steels, dissimilar steels, surfacing rails, rolls, alforging dies, hot work tools, dies for plastics etc. Good scaling resistance up to 1150 °C.

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Typical Charpy V-Notch Properties

As Welded
Impact Value 22 ft-lb
Impact Value 30 J
Shielding Gas AWS
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationShielding GasTensile Strength Yield Strength
As Welded25 %AWS790 MPa (115 ksi)610 MPa (88 ksi)

Deposition Data

Current Deposition Rate @ 90% I max Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
40-60 A 41 sec 0.7 kg/h (1.5 lb/h) 2.0 x 300.0 mm (5/64 x 11.8 in.) 64 % 123 22 V
50-85 A 48 sec 0.9 kg/h (2.0 lb/h) 2.5 x 300.0 mm (0.098 x 11.8 in.) 64 % 78 24 V
60-125 A 65 sec 1.3 kg/h (2.9 lb/h) 3.2 x 350.0 mm (1/8 x 13.8 in.) 62 % 42 25 V
80-175 A 66 sec 2.0 kg/h (4.4 lb/h) 4.0 x 350.0 mm (5/32 x 13.8 in.) 62 % 26 26 V
150-240 A 68 sec 3.2 kg/h (7.1 lb/h) 5.0 x 350.0 mm (0.197 x 13.8 in.) 65 % 17 28 V

Classifications

Classifications EN 14700 : E Fe11
EN ISO 3581-A : E 29 9 R 3 2
SFA/AWS A5.4 : E312-17
Werkstoffnummer : 1.4337

Approvals

Approvals CE EN 13479
Seproz UNA 272580
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type Stainless duplex
Coating Type Acid Rutile
Ferrite Content FN 30 - 50
Welding Current DC+, AC

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Mn Mo N Ni Si Si+Fe
0.13 % 28.9 % 0.9 % 0.04 % 0.09 % 10.2 % 0.7 % 40 %
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Part Numbers and Accessories

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Part Numbers : OK 68.81
68812020L0 Find a distributor
68812520L0 Find a distributor
68813230T0 Find a distributor
68814030G0 Find a distributor
68815030G0 Find a distributor

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

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