ESAB

OK 61.86

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OK 61.86 is a low carbon niobium stabilized stainless steel electrode for welding niobium or titanium stabilized steels of the 19Cr 10Ni-type. Specially designed for use in applications where heat treatment is required. The ferrite content level is quite low causing the OK 61.86 to be a bit sensitive for hot cracking. Despite the low ferrite content level, the maximum working temperature is limited to maximum 400°C. OK 61.86 is not designed to withstand creep and the weld metal would have undermatching creep resistance compared to base materials that are designed to work at higher temperatures.


Typical Charpy V-Notch Properties

As Welded
Impact Value 41 ft-lb
Impact Value 55 J
Shielding Gas ISO
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationShielding GasTensile Strength Yield Strength
As Welded35 %ISO660 MPa (96 ksi)520 MPa (75 ksi)

Deposition Data

Current Deposition Rate @ 90% I max Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
70-120 A 62 sec 1.1 kg/h (2,4 lb/h) 3.2 x 350.0 mm (1/8 x 13,8 in.) 55 % 53 27 V
80-170 A 64 sec 1.7 kg/h (3,7 lb/h) 4.0 x 350.0 mm (5/32 x 13,8 in.) 54 % 34 28 V

Classifications

Classifications Werkstoffnummer : 1.4551
EN ISO 3581-A : E 19 9 Nb R 1 2
SFA/AWS A5.4 : E347-17

Approvals

Approvals NAKS/HAKC 4.0 mm
Seproz UNA 272580
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type Austenitic CrNi
Ferrite Content FN 4-8
Welding Current AC, DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Mn N Nb Ni Si Si+Fe
0.025 % 19.0 % 0.7 % 0.09 % 0.35 % 10.4 % 0.8 % 5 %
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How to purchase OK 61.86

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Part Numbers and Accessories

Part Numbers : OK 61.86
61863230T0
61864030G0
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