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ESAB

OK 61.85

OK 61.85

OK 61.85 is a basic Nb-stabilized electrode designed for welding of Nb- or Ti-stabilized stainless steels of the 19Cr10Ni-type. It has very good resistance against intergranular corrosion. OK 61.85 provides the best hot cracking resistance of the E347 type electrodes due to the combination of the high ferrite content level and the basic coating. Ferrite may transform to brittle phases at elevated temperatures. To avoid excessive embrittlement of the welds the maximum working temperature is limited to 400°C.

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Specifications


Typical Tensile Properties

ISO As welded
Elongation Tensile Strength Yield Strength Stress Relieved Temperature Stress Relieved Testing Time
40 % 90 ksi 72.5 ksi - -
ISO Stress relieved
Elongation Tensile Strength Yield Strength Stress Relieved Temperature Stress Relieved Testing Time
40 % 93 ksi 72.5 ksi 1112 °F 16 hr
AWS As welded
Elongation Tensile Strength Yield Strength Stress Relieved Temperature Stress Relieved Testing Time
- - - - -

Typical Charpy V-Notch Properties

ISO As welded
Impact Value Testing Temperature Stress Relieved Testing Temp Stress Relieved Testing Time
74 ft-lb 68 °F - -
52 ft-lb -76 °F - -
- -184 °F - -
ISO Stress relieved
Impact Value Testing Temperature Stress Relieved Testing Temp Stress Relieved Testing Time
59 ft-lb 68 °F 1112 °F 16 hr
29.5 ft-lb -76 °F 1112 °F 16 hr

Typical Weld Metal Analysis %

MnCNbSiFerrite FNNiNCr
1.7 %0.04 %0.61 %0.4 %6 %10.2 %0.07 %19.5 %

Approvals: NAKS/HAKC, 2.5-4.0 mm, Seproz, UNA 272580, VdTÜV, 05663
Classifications: EN ISO 3581-A, E 19 9 Nb B 2 2, SFA/AWS A5.4, E347-15, Werkstoffnummer, 1.4551

Approvals are based on factory location. Please contact ESAB for more information.


Alloy Type: Austenitic CrNi
Coating Type: Basic
Ferrite Content: FN 6-12
Welding Current: DC+
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